31030531066 has 8 divisors (see below), whose sum is σ = 46546631604. Its totient is φ = 15514987200.

The previous prime is 31030531057. The next prime is 31030531079. The reversal of 31030531066 is 66013503013.

It can be written as a sum of positive squares in 2 ways, for example, as 21957016041 + 9073515025 = 148179^2 + 95255^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 53586 + ... + 254818.

Almost surely, 2^31030531066 is an apocalyptic number.

31030531066 is a deficient number, since it is larger than the sum of its proper divisors (15516100538).

31030531066 is a wasteful number, since it uses less digits than its factorization.

31030531066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 278336.

The product of its (nonzero) digits is 4860, while the sum is 28.

The spelling of 31030531066 in words is "thirty-one billion, thirty million, five hundred thirty-one thousand, sixty-six".