11402521434 has 24 divisors (see below), whose sum is σ = 24722759412. Its totient is φ = 3798179520.

The previous prime is 11402521421. The next prime is 11402521451. The reversal of 11402521434 is 43412520411.

11402521434 is a `hidden beast` number, since 11 + 402 + 5 + 214 + 34 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 11110214025 + 292307409 = 105405^2 + 17097^2 .

It is a junction number, because it is equal to n+sod(n) for n = 11402521398 and 11402521407.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 195237 + ... + 246824.

Almost surely, 2^11402521434 is an apocalyptic number.

11402521434 is an abundant number, since it is smaller than the sum of its proper divisors (13320237978).

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

11402521434 is a wasteful number, since it uses less digits than its factorization.

11402521434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 443502 (or 443499 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

The spelling of 11402521434 in words is "eleven billion, four hundred two million, five hundred twenty-one thousand, four hundred thirty-four".