31331122203112 has 16 divisors (see below), whose sum is σ = 58786452531360. Its totient is φ = 15654734861424.

The previous prime is 31331122203103. The next prime is 31331122203119. The reversal of 31331122203112 is 21130222113313.

It is not an unprimeable number, because it can be changed into a prime (31331122203119) 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, 1353267718 + ... + 1353290869.

It is an arithmetic number, because the mean of its divisors is an integer number (3674153283210).

Almost surely, 2^{31331122203112} is an apocalyptic number.

It is an amenable number.

31331122203112 is a deficient number, since it is larger than the sum of its proper divisors (27455330328248).

31331122203112 is a wasteful number, since it uses less digits than its factorization.

31331122203112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2706560040 (or 2706560036 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 25.

Adding to 31331122203112 its reverse (21130222113313), we get a palindrome (52461344316425).

The spelling of 31331122203112 in words is "thirty-one trillion, three hundred thirty-one billion, one hundred twenty-two million, two hundred three thousand, one hundred twelve".