31420133586 has 12 divisors (see below), whose sum is σ = 68076956142. Its totient is φ = 10473377856.

The previous prime is 31420133573. The next prime is 31420133587. The reversal of 31420133586 is 68533102413.

31420133586 is a `hidden beast` number, since 3 + 1 + 42 + 0 + 1 + 33 + 586 = 666.

It can be written as a sum of positive squares in only one way, i.e., 27152777961 + 4267355625 = 164781^2 + 65325^2 .

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 31420133586.

It is not an unprimeable number, because it can be changed into a prime (31420133587) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 872781471 + ... + 872781506.

Almost surely, 2^31420133586 is an apocalyptic number.

31420133586 is an abundant number, since it is smaller than the sum of its proper divisors (36656822556).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31420133586 is a wasteful number, since it uses less digits than its factorization.

31420133586 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1745562985 (or 1745562982 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

Adding to 31420133586 its reverse (68533102413), we get a palindrome (99953235999).

The spelling of 31420133586 in words is "thirty-one billion, four hundred twenty million, one hundred thirty-three thousand, five hundred eighty-six".