12135307420992 has 56 divisors (see below), whose sum is σ = 36694858158016. Its totient is φ = 3467230691328.

The previous prime is 12135307420987. The next prime is 12135307421033. The reversal of 12135307420992 is 29902470353121.

It is a tau number, because it is divible by the number of its divisors (56).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4514621953 + ... + 4514624640.

Almost surely, 2^{12135307420992} is an apocalyptic number.

12135307420992 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12135307420992 is an abundant number, since it is smaller than the sum of its proper divisors (24559550737024).

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

12135307420992 is an equidigital number, since it uses as much as digits as its factorization.

12135307420992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9029246615 (or 9029246605 counting only the distinct ones).

The product of its (nonzero) digits is 816480, while the sum is 48.

The spelling of 12135307420992 in words is "twelve trillion, one hundred thirty-five billion, three hundred seven million, four hundred twenty thousand, nine hundred ninety-two".