31011243042122 has 16 divisors (see below), whose sum is σ = 54398459556672. Its totient is φ = 12981450575520.

The previous prime is 31011243042067. The next prime is 31011243042133. The reversal of 31011243042122 is 22124034211013.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 31011243042091 and 31011243042100.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25756845779 + ... + 25756846982.

It is an arithmetic number, because the mean of its divisors is an integer number (3399903722292).

Almost surely, 2^{31011243042122} is an apocalyptic number.

31011243042122 is a deficient number, since it is larger than the sum of its proper divisors (23387216514550).

31011243042122 is a wasteful number, since it uses less digits than its factorization.

31011243042122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51513692813.

The product of its (nonzero) digits is 2304, while the sum is 26.

Adding to 31011243042122 its reverse (22124034211013), we get a palindrome (53135277253135).

The spelling of 31011243042122 in words is "thirty-one trillion, eleven billion, two hundred forty-three million, forty-two thousand, one hundred twenty-two".