31021022112130 has 8 divisors (see below), whose sum is σ = 55837839801852. Its totient is φ = 12408408844848.

The previous prime is 31021022112049. The next prime is 31021022112131. The reversal of 31021022112130 is 3121122012013.

It can be written as a sum of positive squares in 2 ways, for example, as 29738164599441 + 1282857512689 = 5453271^2 + 1132633^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 31021022112098 and 31021022112107.

It is not an unprimeable number, because it can be changed into a prime (31021022112131) 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, 1551051105597 + ... + 1551051105616.

Almost surely, 2^{31021022112130} is an apocalyptic number.

31021022112130 is a deficient number, since it is larger than the sum of its proper divisors (24816817689722).

31021022112130 is a wasteful number, since it uses less digits than its factorization.

31021022112130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3102102211220.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 31021022112130 its reverse (3121122012013), we get a palindrome (34142144124143).

The spelling of 31021022112130 in words is "thirty-one trillion, twenty-one billion, twenty-two million, one hundred twelve thousand, one hundred thirty".