3200121131 has 4 divisors (see below), whose sum is σ = 3200317032. Its totient is φ = 3199925232.

The previous prime is 3200121121. The next prime is 3200121149. The reversal of 3200121131 is 1311210023.

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

It is a cyclic number.

It is not a de Polignac number, because 3200121131 - 2²² = 3195926827 is a prime.

It is a super-2 number, since 2×3200121131² = 20481550506145438322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3200121121) 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, 70970 + ... + 106943.

It is an arithmetic number, because the mean of its divisors is an integer number (800079258).

Almost surely, 2^3200121131 is an apocalyptic number.

3200121131 is a deficient number, since it is larger than the sum of its proper divisors (195901).

3200121131 is a wasteful number, since it uses less digits than its factorization.

3200121131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195900.

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 3200121131 is about 56569.6131416859. The cubic root of 3200121131 is about 1473.6311929890.

Adding to 3200121131 its reverse (1311210023), we get a palindrome (4511331154).

The spelling of 3200121131 in words is "three billion, two hundred million, one hundred twenty-one thousand, one hundred thirty-one".