20312101552 has 10 divisors (see below), whose sum is σ = 39354696788. Its totient is φ = 10156050768.

The previous prime is 20312101501. The next prime is 20312101567. The reversal of 20312101552 is 25510121302.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 634753158 + ... + 634753189.

Almost surely, 2^20312101552 is an apocalyptic number.

It is an amenable number.

20312101552 is a deficient number, since it is larger than the sum of its proper divisors (19042595236).

20312101552 is a wasteful number, since it uses less digits than its factorization.

20312101552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1269506355 (or 1269506349 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 22.

Adding to 20312101552 its reverse (25510121302), we get a palindrome (45822222854).

The spelling of 20312101552 in words is "twenty billion, three hundred twelve million, one hundred one thousand, five hundred fifty-two".