3121001112 has 32 divisors (see below), whose sum is σ = 8071556400. Its totient is φ = 1004459904.

The previous prime is 3121001063. The next prime is 3121001119. The reversal of 3121001112 is 2111001213.

It is a super-2 number, since 2×3121001112² = 19481295882210473088, which contains 22 as substring.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3121001119) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2241403 + ... + 2242794.

Almost surely, 2^3121001112 is an apocalyptic number.

It is an amenable number.

3121001112 is an abundant number, since it is smaller than the sum of its proper divisors (4950555288).

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

3121001112 is a wasteful number, since it uses less digits than its factorization.

3121001112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4484235 (or 4484231 counting only the distinct ones).

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

The square root of 3121001112 is about 55865.9208462547. The cubic root of 3121001112 is about 1461.3849858775.

Adding to 3121001112 its reverse (2111001213), we get a palindrome (5232002325).

The spelling of 3121001112 in words is "three billion, one hundred twenty-one million, one thousand, one hundred twelve".