31010013122101 has 4 divisors (see below), whose sum is σ = 33395398746892. Its totient is φ = 28624627497312.

The previous prime is 31010013122069. The next prime is 31010013122111. The reversal of 31010013122101 is 10122131001013.

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 1323305122500 + 29686707999601 = 1150350^2 + 5448551^2 .

It is a cyclic number.

It is not a de Polignac number, because 31010013122101 - 2⁵ = 31010013122069 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31010013122111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1192692812376 + ... + 1192692812401.

It is an arithmetic number, because the mean of its divisors is an integer number (8348849686723).

Almost surely, 2^{31010013122101} is an apocalyptic number.

It is an amenable number.

31010013122101 is a deficient number, since it is larger than the sum of its proper divisors (2385385624791).

31010013122101 is a wasteful number, since it uses less digits than its factorization.

31010013122101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2385385624790.

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 31010013122101 its reverse (10122131001013), we get a palindrome (41132144123114).

The spelling of 31010013122101 in words is "thirty-one trillion, ten billion, thirteen million, one hundred twenty-two thousand, one hundred one".