31101131130030 has 96 divisors (see below), whose sum is σ = 90869391902016. Its totient is φ = 7322808125952.

The previous prime is 31101131129993. The next prime is 31101131130031. The reversal of 31101131130030 is 3003113110113.

31101131130030 is a `hidden beast` number, since 3 + 1 + 10 + 11 + 311 + 300 + 30 = 666.

It is a super-2 number, since 2×31101131130030² (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 31101131129985 and 31101131130012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31101131130031) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 577846207 + ... + 577900026.

It is an arithmetic number, because the mean of its divisors is an integer number (946556165646).

Almost surely, 2^{31101131130030} is an apocalyptic number.

31101131130030 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

31101131130030 is an abundant number, since it is smaller than the sum of its proper divisors (59768260771986).

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

31101131130030 is a wasteful number, since it uses less digits than its factorization.

31101131130030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1155746282 (or 1155746279 counting only the distinct ones).

The product of its (nonzero) digits is 81, while the sum is 18.

Adding to 31101131130030 its reverse (3003113110113), we get a palindrome (34104244240143).

It can be divided in two parts, 31101 and 131130030, that added together give a palindrome (131161131).

The spelling of 31101131130030 in words is "thirty-one trillion, one hundred one billion, one hundred thirty-one million, one hundred thirty thousand, thirty".