31683223045 has 16 divisors (see below), whose sum is σ = 40100538240. Its totient is φ = 23964773184.

The previous prime is 31683223027. The next prime is 31683223073. The reversal of 31683223045 is 54032238613.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31683223045 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 31683222995 and 31683223013.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 283734 + ... + 379303.

It is an arithmetic number, because the mean of its divisors is an integer number (2506283640).

Almost surely, 2^31683223045 is an apocalyptic number.

It is an amenable number.

31683223045 is a deficient number, since it is larger than the sum of its proper divisors (8417315195).

31683223045 is a wasteful number, since it uses less digits than its factorization.

31683223045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 663564.

The product of its (nonzero) digits is 103680, while the sum is 37.

The spelling of 31683223045 in words is "thirty-one billion, six hundred eighty-three million, two hundred twenty-three thousand, forty-five".