61233471331 has 16 divisors (see below), whose sum is σ = 63622589184. Its totient is φ = 58894938144.

The previous prime is 61233471311. The next prime is 61233471337. The reversal of 61233471331 is 13317433216.

It is a cyclic number.

It is not a de Polignac number, because 61233471331 - 2¹⁹ = 61232947043 is a prime.

It is a super-2 number, since 2×61233471331² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (61233471337) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 728521 + ... + 808213.

It is an arithmetic number, because the mean of its divisors is an integer number (3976411824).

Almost surely, 2^61233471331 is an apocalyptic number.

61233471331 is a deficient number, since it is larger than the sum of its proper divisors (2389117853).

61233471331 is a wasteful number, since it uses less digits than its factorization.

61233471331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80010.

The product of its digits is 27216, while the sum is 34.

The spelling of 61233471331 in words is "sixty-one billion, two hundred thirty-three million, four hundred seventy-one thousand, three hundred thirty-one".