11512401036420 has 48 divisors (see below), whose sum is σ = 32236045994880. Its totient is φ = 3069847600896.

The previous prime is 11512401036403. The next prime is 11512401036427. The reversal of 11512401036420 is 2463010421511.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (11512401036427) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2459217 + ... + 5391896.

It is an arithmetic number, because the mean of its divisors is an integer number (671584291560).

Almost surely, 2^{11512401036420} is an apocalyptic number.

11512401036420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11512401036420 is an abundant number, since it is smaller than the sum of its proper divisors (20723644958460).

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

11512401036420 is a wasteful number, since it uses less digits than its factorization.

11512401036420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7875564 (or 7875562 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 30.

Adding to 11512401036420 its reverse (2463010421511), we get a palindrome (13975411457931).

The spelling of 11512401036420 in words is "eleven trillion, five hundred twelve billion, four hundred one million, thirty-six thousand, four hundred twenty".