3121400334 has 32 divisors (see below), whose sum is σ = 7015325184. Its totient is φ = 918672480.

The previous prime is 3121400333. The next prime is 3121400341. The reversal of 3121400334 is 4330041213.

It is a self number, because there is not a number n which added to its sum of digits gives 3121400334.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3121400333) 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, 868162 + ... + 871749.

It is an arithmetic number, because the mean of its divisors is an integer number (219228912).

Almost surely, 2^3121400334 is an apocalyptic number.

3121400334 is an abundant number, since it is smaller than the sum of its proper divisors (3893924850).

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

3121400334 is a wasteful number, since it uses less digits than its factorization.

3121400334 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1739952.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 3121400334 is about 55869.4937689613. The cubic root of 3121400334 is about 1461.4472941072.

Adding to 3121400334 its reverse (4330041213), we get a palindrome (7451441547).

The spelling of 3121400334 in words is "three billion, one hundred twenty-one million, four hundred thousand, three hundred thirty-four".