61131012052 has 24 divisors (see below), whose sum is σ = 118303359552. Its totient is φ = 27406180800.

The previous prime is 61131012029. The next prime is 61131012073. The reversal of 61131012052 is 25021013116.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9512824 + ... + 9519247.

It is an arithmetic number, because the mean of its divisors is an integer number (4929306648).

Almost surely, 2^61131012052 is an apocalyptic number.

It is an amenable number.

61131012052 is a deficient number, since it is larger than the sum of its proper divisors (57172347500).

61131012052 is a wasteful number, since it uses less digits than its factorization.

61131012052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19032159 (or 19032157 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 22.

Adding to 61131012052 its reverse (25021013116), we get a palindrome (86152025168).

The spelling of 61131012052 in words is "sixty-one billion, one hundred thirty-one million, twelve thousand, fifty-two".