61131023 has 2 divisors, whose sum is σ = 61131024. Its totient is φ = 61131022.

The previous prime is 61131017. The next prime is 61131053. The reversal of 61131023 is 32013116.

61131023 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 61131023 - 2²⁴ = 44353807 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 61130992 and 61131010.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61131053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30565511 + 30565512.

It is an arithmetic number, because the mean of its divisors is an integer number (30565512).

Almost surely, 2^61131023 is an apocalyptic number.

61131023 is a deficient number, since it is larger than the sum of its proper divisors (1).

61131023 is an equidigital number, since it uses as much as digits as its factorization.

61131023 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 61131023 is about 7818.6330646731. The cubic root of 61131023 is about 393.9313592020.

Adding to 61131023 its reverse (32013116), we get a palindrome (93144139).

The spelling of 61131023 in words is "sixty-one million, one hundred thirty-one thousand, twenty-three".