3121520034 has 8 divisors (see below), whose sum is σ = 6243040080. Its totient is φ = 1040506676.

The previous prime is 3121520033. The next prime is 3121520099. The reversal of 3121520034 is 4300251213.

3121520034 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

3121520034 is an admirable number.

It is a super-2 number, since 2×3121520034² = 19487774645326722312, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3121520033) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 260126664 + ... + 260126675.

It is an arithmetic number, because the mean of its divisors is an integer number (780380010).

Almost surely, 2^3121520034 is an apocalyptic number.

3121520034 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

3121520034 is a wasteful number, since it uses less digits than its factorization.

3121520034 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 520253344.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 3121520034 is about 55870.5650051975. The cubic root of 3121520034 is about 1461.4659751463.

Adding to 3121520034 its reverse (4300251213), we get a palindrome (7421771247).

The spelling of 3121520034 in words is "three billion, one hundred twenty-one million, five hundred twenty thousand, thirty-four".