20121230415051 has 16 divisors (see below), whose sum is σ = 29810467747200. Its totient is φ = 13413596733864.

The previous prime is 20121230415043. The next prime is 20121230415053. The reversal of 20121230415051 is 15051403212102.

It is a happy number.

20121230415051 is a `hidden beast` number, since 2 + 0 + 1 + 212 + 30 + 415 + 0 + 5 + 1 = 666.

It is not a de Polignac number, because 20121230415051 - 2³ = 20121230415043 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (20121230415053) 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, 14805841 + ... + 16107618.

It is an arithmetic number, because the mean of its divisors is an integer number (1863154234200).

Almost surely, 2^{20121230415051} is an apocalyptic number.

20121230415051 is a deficient number, since it is larger than the sum of its proper divisors (9689237332149).

20121230415051 is a wasteful number, since it uses less digits than its factorization.

20121230415051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30937575 (or 30937569 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 27.

Adding to 20121230415051 its reverse (15051403212102), we get a palindrome (35172633627153).

The spelling of 20121230415051 in words is "twenty trillion, one hundred twenty-one billion, two hundred thirty million, four hundred fifteen thousand, fifty-one".