523013131 has 2 divisors, whose sum is σ = 523013132. Its totient is φ = 523013130.

The previous prime is 523013107. The next prime is 523013137. The reversal of 523013131 is 131310325.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 523013131 - 2⁹ = 523012619 is a prime.

It is a super-2 number, since 2×523013131² = 547085470396846322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 523013099 and 523013108.

It is not a weakly prime, because it can be changed into another prime (523013137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 261506565 + 261506566.

It is an arithmetic number, because the mean of its divisors is an integer number (261506566).

Almost surely, 2^523013131 is an apocalyptic number.

523013131 is a deficient number, since it is larger than the sum of its proper divisors (1).

523013131 is an equidigital number, since it uses as much as digits as its factorization.

523013131 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 270, while the sum is 19.

The square root of 523013131 is about 22869.4803395267. The cubic root of 523013131 is about 805.6953630592.

Adding to 523013131 its reverse (131310325), we get a palindrome (654323456).

The spelling of 523013131 in words is "five hundred twenty-three million, thirteen thousand, one hundred thirty-one".