3120002131 has 4 divisors (see below), whose sum is σ = 3121603264. Its totient is φ = 3118401000.

The previous prime is 3120002117. The next prime is 3120002167. The reversal of 3120002131 is 1312000213.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3120002131 is a prime.

It is a super-2 number, since 2×3120002131² = 19468826594889082322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3120002101) 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, 797640 + ... + 801541.

It is an arithmetic number, because the mean of its divisors is an integer number (780400816).

Almost surely, 2^3120002131 is an apocalyptic number.

3120002131 is a deficient number, since it is larger than the sum of its proper divisors (1601133).

3120002131 is a wasteful number, since it uses less digits than its factorization.

3120002131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1601132.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 3120002131 is about 55856.9792505825. The cubic root of 3120002131 is about 1461.2290474918.

Adding to 3120002131 its reverse (1312000213), we get a palindrome (4432002344).

The spelling of 3120002131 in words is "three billion, one hundred twenty million, two thousand, one hundred thirty-one".