31312101231122 has 4 divisors (see below), whose sum is σ = 46968151846686. Its totient is φ = 15656050615560.

The previous prime is 31312101231113. The next prime is 31312101231133. The reversal of 31312101231122 is 22113210121313.

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 only one way, i.e., 17805454561801 + 13506646669321 = 4219651^2 + 3675139^2 .

It is a super-2 number, since 2×31312101231122² (a number of 28 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7828025307779 + ... + 7828025307782.

Almost surely, 2^{31312101231122} is an apocalyptic number.

31312101231122 is a deficient number, since it is larger than the sum of its proper divisors (15656050615564).

31312101231122 is a wasteful number, since it uses less digits than its factorization.

31312101231122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15656050615563.

The product of its (nonzero) digits is 432, while the sum is 23.

Adding to 31312101231122 its reverse (22113210121313), we get a palindrome (53425311352435).

The spelling of 31312101231122 in words is "thirty-one trillion, three hundred twelve billion, one hundred one million, two hundred thirty-one thousand, one hundred twenty-two".