31113301100 has 72 divisors (see below), whose sum is σ = 77279220480. Its totient is φ = 10651072320.

The previous prime is 31113301013. The next prime is 31113301103. The reversal of 31113301100 is 110331113.

It is a happy number.

It is a super-2 number, since 2×31113301100² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is not an unprimeable number, because it can be changed into a prime (31113301103) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 427577 + ... + 495023.

Almost surely, 2^31113301100 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 31113301100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38639610240).

31113301100 is an abundant number, since it is smaller than the sum of its proper divisors (46165919380).

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

31113301100 is a wasteful number, since it uses less digits than its factorization.

31113301100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68127 (or 68120 counting only the distinct ones).

The product of its (nonzero) digits is 27, while the sum is 14.

Adding to 31113301100 its reverse (110331113), we get a palindrome (31223632213).

The spelling of 31113301100 in words is "thirty-one billion, one hundred thirteen million, three hundred one thousand, one hundred".