3121123000 has 64 divisors (see below), whose sum is σ = 7621024320. Its totient is φ = 1194160000.

The previous prime is 3121122959. The next prime is 3121123001. The reversal of 3121123000 is 3211213.

It is a super-2 number, since 2×3121123000² = 19482817562258000000, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3121123001) 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, 44851 + ... + 90850.

It is an arithmetic number, because the mean of its divisors is an integer number (119078505).

Almost surely, 2^3121123000 is an apocalyptic number.

It is an amenable number.

3121123000 is an abundant number, since it is smaller than the sum of its proper divisors (4499901320).

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

3121123000 is a wasteful number, since it uses less digits than its factorization.

3121123000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135745 (or 135731 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 3121123000 is about 55867.0117332223. The cubic root of 3121123000 is about 1461.4040100055.

Adding to 3121123000 its reverse (3211213), we get a palindrome (3124334213).

The spelling of 3121123000 in words is "three billion, one hundred twenty-one million, one hundred twenty-three thousand".