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101022012013 = 13371371533029
BaseRepresentation
bin101111000010101100…
…0011001001001101101
3100122202101201221011111
41132011120121021231
53123343113341023
6114224152152021
710204263635236
oct1360530311155
9318671657144
10101022012013
113993032392a
12176b4098611
1396ac485a90
144c64a9c08d
152963d1800d
hex178561926d

101022012013 has 16 divisors (see below), whose sum is σ = 112548930480. Its totient is φ = 90068461056.

The previous prime is 101022012001. The next prime is 101022012037. The reversal of 101022012013 is 310210220101.

It can be written as a sum of positive squares in 8 ways, for example, as 343991209 + 100678020804 = 18547^2 + 317298^2 .

It is a cyclic number.

It is not a de Polignac number, because 101022012013 - 217 = 101021880941 is a prime.

It is a super-2 number, since 2×1010220120132 (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a junction number, because it is equal to n+sod(n) for n = 101022011984 and 101022012002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101022010013) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 700618 + ... + 832411.

It is an arithmetic number, because the mean of its divisors is an integer number (7034308155).

Almost surely, 2101022012013 is an apocalyptic number.

101022012013 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

101022012013 is a deficient number, since it is larger than the sum of its proper divisors (11526918467).

101022012013 is a wasteful number, since it uses less digits than its factorization.

101022012013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1533216.

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 101022012013 its reverse (310210220101), we get a palindrome (411232232114).

The spelling of 101022012013 in words is "one hundred one billion, twenty-two million, twelve thousand, thirteen".

Divisors: 1 13 37 137 481 1781 5069 65897 1533029 19929377 56722073 210024973 737386949 2730324649 7770924001 101022012013