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101222313131 = 671510780793
BaseRepresentation
bin101111001000101010…
…0011110110010101011
3100200021100122021122102
41132101110132302223
53124300403010011
6114300105244015
710212245315432
oct1362124366253
9320240567572
10101222313131
1139a233a2045
121774b19360b
139711b17154
144c8351c119
1529766d173b
hex179151ecab

101222313131 has 4 divisors (see below), whose sum is σ = 102733093992. Its totient is φ = 99711532272.

The previous prime is 101222313091. The next prime is 101222313133. The reversal of 101222313131 is 131313222101.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 131313222101 = 226957872729.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-101222313131 is a prime.

It is a super-2 number, since 2×1012223131312 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (101222313133) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 755390330 + ... + 755390463.

It is an arithmetic number, because the mean of its divisors is an integer number (25683273498).

Almost surely, 2101222313131 is an apocalyptic number.

101222313131 is a deficient number, since it is larger than the sum of its proper divisors (1510780861).

101222313131 is an equidigital number, since it uses as much as digits as its factorization.

101222313131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1510780860.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 101222313131 its reverse (131313222101), we get a palindrome (232535535232).

The spelling of 101222313131 in words is "one hundred one billion, two hundred twenty-two million, three hundred thirteen thousand, one hundred thirty-one".

Divisors: 1 67 1510780793 101222313131