31130078482 has 4 divisors (see below), whose sum is σ = 46695117726. Its totient is φ = 15565039240.

The previous prime is 31130078453. The next prime is 31130078537. The reversal of 31130078482 is 28487003113.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 28487003113 = 461 ⋅61793933.

It can be written as a sum of positive squares in only one way, i.e., 17904848481 + 13225230001 = 133809^2 + 115001^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7782519619 + ... + 7782519622.

Almost surely, 2^31130078482 is an apocalyptic number.

31130078482 is a deficient number, since it is larger than the sum of its proper divisors (15565039244).

31130078482 is a wasteful number, since it uses less digits than its factorization.

31130078482 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15565039243.

The product of its (nonzero) digits is 32256, while the sum is 37.

The spelling of 31130078482 in words is "thirty-one billion, one hundred thirty million, seventy-eight thousand, four hundred eighty-two".