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1310201031 = 319101322691
BaseRepresentation
bin100111000011000…
…0001010011000111
310101022101002221010
41032012001103013
510140402413111
6334002053303
744316345036
oct11606012307
93338332833
101310201031
11612635477
1230694a233
1317b59a1a9
14c601871d
157a057aa6
hex4e1814c7

1310201031 has 16 divisors (see below), whose sum is σ = 1840775040. Its totient is φ = 826642080.

The previous prime is 1310201029. The next prime is 1310201047. The reversal of 1310201031 is 1301020131.

It is not a de Polignac number, because 1310201031 - 21 = 1310201029 is a prime.

It is a super-2 number, since 2×13102010312 = 3433253483266925922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1310200998 and 1310201016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1310201021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 46396 + ... + 69086.

It is an arithmetic number, because the mean of its divisors is an integer number (115048440).

Almost surely, 21310201031 is an apocalyptic number.

1310201031 is a deficient number, since it is larger than the sum of its proper divisors (530574009).

1310201031 is a wasteful number, since it uses less digits than its factorization.

1310201031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23726.

The product of its (nonzero) digits is 18, while the sum is 12.

The square root of 1310201031 is about 36196.6991727146. The cubic root of 1310201031 is about 1094.2401492234.

Adding to 1310201031 its reverse (1301020131), we get a palindrome (2611221162).

Subtracting from 1310201031 its reverse (1301020131), we obtain a square (9180900 = 30302).

The spelling of 1310201031 in words is "one billion, three hundred ten million, two hundred one thousand, thirty-one".

Divisors: 1 3 19 57 1013 3039 19247 22691 57741 68073 431129 1293387 22985983 68957949 436733677 1310201031