2521204131 has 8 divisors (see below), whose sum is σ = 3363204880. Its totient is φ = 1680003072.

The previous prime is 2521204111. The next prime is 2521204151. The reversal of 2521204131 is 1314021252.

It is an interprime number because it is at equal distance from previous prime (2521204111) and next prime (2521204151).

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

It is not a de Polignac number, because 2521204131 - 2⁷ = 2521204003 is a prime.

It is a super-2 number, since 2×2521204131² = 12712940540342930322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2521204098 and 2521204107.

It is not an unprimeable number, because it can be changed into a prime (2521204111) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 192526 + ... + 205203.

It is an arithmetic number, because the mean of its divisors is an integer number (420400610).

Almost surely, 2^2521204131 is an apocalyptic number.

2521204131 is a deficient number, since it is larger than the sum of its proper divisors (842000749).

2521204131 is a wasteful number, since it uses less digits than its factorization.

2521204131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 399845.

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 2521204131 is about 50211.5935915203. The cubic root of 2521204131 is about 1361.0351351916.

Adding to 2521204131 its reverse (1314021252), we get a palindrome (3835225383).

The spelling of 2521204131 in words is "two billion, five hundred twenty-one million, two hundred four thousand, one hundred thirty-one".