3121113000 has 64 divisors (see below), whose sum is σ = 9737881920. Its totient is φ = 832296000.

The previous prime is 3121112999. The next prime is 3121113001. The reversal of 3121113000 is 3111213.

It is an interprime number because it is at equal distance from previous prime (3121112999) and next prime (3121113001).

It is a Harshad number since it is a multiple of its sum of digits (12).

It is not an unprimeable number, because it can be changed into a prime (3121113001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 517186 + ... + 523185.

It is an arithmetic number, because the mean of its divisors is an integer number (152154405).

Almost surely, 2^3121113000 is an apocalyptic number.

3121113000 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3121113000 is an abundant number, since it is smaller than the sum of its proper divisors (6616768920).

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

3121113000 is a wasteful number, since it uses less digits than its factorization.

3121113000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1040395 (or 1040381 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 12.

The square root of 3121113000 is about 55866.9222348967. The cubic root of 3121113000 is about 1461.4024492365.

Adding to 3121113000 its reverse (3111213), we get a palindrome (3124224213).

The spelling of 3121113000 in words is "three billion, one hundred twenty-one million, one hundred thirteen thousand".