5131052421 has 32 divisors (see below), whose sum is σ = 7914931200. Its totient is φ = 2922151680.

The previous prime is 5131052411. The next prime is 5131052453. The reversal of 5131052421 is 1242501315.

It is a happy number.

5131052421 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 5131052421 - 2¹¹ = 5131050373 is a prime.

It is a super-2 number, since 2×5131052421² = 52655397894099922482, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 5131052391 and 5131052400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5131052411) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 362760 + ... + 376638.

It is an arithmetic number, because the mean of its divisors is an integer number (247341600).

Almost surely, 2^5131052421 is an apocalyptic number.

5131052421 is a gapful number since it is divisible by the number (51) formed by its first and last digit.

It is an amenable number.

5131052421 is a deficient number, since it is larger than the sum of its proper divisors (2783878779).

5131052421 is a wasteful number, since it uses less digits than its factorization.

5131052421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14569.

The product of its (nonzero) digits is 1200, while the sum is 24.

The square root of 5131052421 is about 71631.3647852671. The cubic root of 5131052421 is about 1724.7870544110.

Adding to 5131052421 its reverse (1242501315), we get a palindrome (6373553736).

The spelling of 5131052421 in words is "five billion, one hundred thirty-one million, fifty-two thousand, four hundred twenty-one".