11234143956 has 72 divisors (see below), whose sum is σ = 30860192160. Its totient is φ = 3171069888.

The previous prime is 11234143903. The next prime is 11234143957. The reversal of 11234143956 is 65934143211.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11234143957) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 66291 + ... + 163898.

It is an arithmetic number, because the mean of its divisors is an integer number (428613780).

Almost surely, 2^11234143956 is an apocalyptic number.

It is an amenable number.

11234143956 is an abundant number, since it is smaller than the sum of its proper divisors (19626048204).

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

11234143956 is a wasteful number, since it uses less digits than its factorization.

11234143956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230293 (or 230284 counting only the distinct ones).

The product of its digits is 77760, while the sum is 39.

The spelling of 11234143956 in words is "eleven billion, two hundred thirty-four million, one hundred forty-three thousand, nine hundred fifty-six".