31031213301100 has 36 divisors (see below), whose sum is σ = 71298775976904. Its totient is φ = 11682339124480.

The previous prime is 31031213301071. The next prime is 31031213301149. The reversal of 31031213301100 is 110331213013.

It is a super-2 number, since 2×31031213301100² (a number of 28 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9126825742 + ... + 9126829141.

It is an arithmetic number, because the mean of its divisors is an integer number (1980521554914).

Almost surely, 2^{31031213301100} is an apocalyptic number.

It is an amenable number.

31031213301100 is an abundant number, since it is smaller than the sum of its proper divisors (40267562675804).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31031213301100 is a wasteful number, since it uses less digits than its factorization.

31031213301100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18253654914 (or 18253654907 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 19.

Adding to 31031213301100 its reverse (110331213013), we get a palindrome (31141544514113).

The spelling of 31031213301100 in words is "thirty-one trillion, thirty-one billion, two hundred thirteen million, three hundred one thousand, one hundred".