20311160412 has 12 divisors (see below), whose sum is σ = 47392707656. Its totient is φ = 6770386800.

The previous prime is 20311160377. The next prime is 20311160449. The reversal of 20311160412 is 21406111302.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

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, 846298339 + ... + 846298362.

Almost surely, 2^20311160412 is an apocalyptic number.

It is an amenable number.

20311160412 is an abundant number, since it is smaller than the sum of its proper divisors (27081547244).

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

20311160412 is a wasteful number, since it uses less digits than its factorization.

20311160412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1692596708 (or 1692596706 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 20311160412 its reverse (21406111302), we get a palindrome (41717271714).

The spelling of 20311160412 in words is "twenty billion, three hundred eleven million, one hundred sixty thousand, four hundred twelve".