31311300101 has 4 divisors (see below), whose sum is σ = 31352445804. Its totient is φ = 31270154400.

The previous prime is 31311300073. The next prime is 31311300103. The reversal of 31311300101 is 10100311313.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 6236260900 + 25075039201 = 78970^2 + 158351^2 .

It is a cyclic number.

It is not a de Polignac number, because 31311300101 - 2¹⁸ = 31311037957 is a prime.

It is a super-2 number, since 2×31311300101² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31311300103) 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, 20571710 + ... + 20573231.

It is an arithmetic number, because the mean of its divisors is an integer number (7838111451).

Almost surely, 2^31311300101 is an apocalyptic number.

It is an amenable number.

31311300101 is a deficient number, since it is larger than the sum of its proper divisors (41145703).

31311300101 is an equidigital number, since it uses as much as digits as its factorization.

31311300101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41145702.

The product of its (nonzero) digits is 27, while the sum is 14.

Adding to 31311300101 its reverse (10100311313), we get a palindrome (41411611414).

The spelling of 31311300101 in words is "thirty-one billion, three hundred eleven million, three hundred thousand, one hundred one".