3121400104 has 32 divisors (see below), whose sum is σ = 6428520000. Its totient is φ = 1414271232.

The previous prime is 3121400101. The next prime is 3121400131. The reversal of 3121400104 is 4010041213.

It is not an unprimeable number, because it can be changed into a prime (3121400101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 442929 + ... + 449920.

It is an arithmetic number, because the mean of its divisors is an integer number (200891250).

Almost surely, 2^3121400104 is an apocalyptic number.

It is an amenable number.

3121400104 is an abundant number, since it is smaller than the sum of its proper divisors (3307119896).

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

3121400104 is a wasteful number, since it uses less digits than its factorization.

3121400104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 892897 (or 892893 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 3121400104 is about 55869.4917105928. The cubic root of 3121400104 is about 1461.4472582117.

Adding to 3121400104 its reverse (4010041213), we get a palindrome (7131441317).

It can be divided in two parts, 3121 and 400104, that added together give a square (403225 = 635²).

The spelling of 3121400104 in words is "three billion, one hundred twenty-one million, four hundred thousand, one hundred four".