3012120100 has 36 divisors (see below), whose sum is σ = 7130512368. Its totient is φ = 1095316000.

The previous prime is 3012120091. The next prime is 3012120101. The reversal of 3012120100 is 10212103.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is not an unprimeable number, because it can be changed into a prime (3012120101) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1368046 + ... + 1370245.

It is an arithmetic number, because the mean of its divisors is an integer number (198069788).

Almost surely, 2^3012120100 is an apocalyptic number.

It is an amenable number.

3012120100 is an abundant number, since it is smaller than the sum of its proper divisors (4118392268).

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

3012120100 is a wasteful number, since it uses less digits than its factorization.

3012120100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2738316 (or 2738309 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 10.

The square root of 3012120100 is about 54882.7850969682. The cubic root of 3012120100 is about 1444.1892060298.

Adding to 3012120100 its reverse (10212103), we get a palindrome (3022332203).

The spelling of 3012120100 in words is "three billion, twelve million, one hundred twenty thousand, one hundred".