1242434802051 has 18 divisors (see below), whose sum is σ = 1876047852588. Its totient is φ = 792277262040.

The previous prime is 1242434802041. The next prime is 1242434802067. The reversal of 1242434802051 is 1502084342421.

1242434802051 is a `hidden beast` number, since 1 + 242 + 4 + 348 + 0 + 20 + 51 = 666.

It is not a de Polignac number, because 1242434802051 - 2²⁷ = 1242300584323 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1242434801997 and 1242434802015.

It is not an unprimeable number, because it can be changed into a prime (1242434802041) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 130475685 + ... + 130485206.

Almost surely, 2^{1242434802051} is an apocalyptic number.

1242434802051 is a deficient number, since it is larger than the sum of its proper divisors (633613050537).

1242434802051 is a wasteful number, since it uses less digits than its factorization.

1242434802051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 260960943 (or 260960917 counting only the distinct ones).

The product of its (nonzero) digits is 61440, while the sum is 36.

It can be divided in two parts, 124243 and 4802051, that added together give a palindrome (4926294).

The spelling of 1242434802051 in words is "one trillion, two hundred forty-two billion, four hundred thirty-four million, eight hundred two thousand, fifty-one".