11402423142 has 48 divisors (see below), whose sum is σ = 25249671216. Its totient is φ = 3430028800.

The previous prime is 11402423099. The next prime is 11402423173. The reversal of 11402423142 is 24132420411.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 42142 + ... + 156782.

It is an arithmetic number, because the mean of its divisors is an integer number (526034817).

Almost surely, 2^11402423142 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11402423142, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12624835608).

11402423142 is an abundant number, since it is smaller than the sum of its proper divisors (13847248074).

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

11402423142 is a wasteful number, since it uses less digits than its factorization.

11402423142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114805 (or 114794 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 24.

Adding to 11402423142 its reverse (24132420411), we get a palindrome (35534843553).

The spelling of 11402423142 in words is "eleven billion, four hundred two million, four hundred twenty-three thousand, one hundred forty-two".