23140115442 has 12 divisors (see below), whose sum is σ = 50136916830. Its totient is φ = 7713371808.

The previous prime is 23140115441. The next prime is 23140115491. The reversal of 23140115442 is 24451104132.

It can be written as a sum of positive squares in only one way, i.e., 16231014801 + 6909100641 = 127401^2 + 83121^2 .

It is not an unprimeable number, because it can be changed into a prime (23140115441) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 642780967 + ... + 642781002.

Almost surely, 2^23140115442 is an apocalyptic number.

23140115442 is an abundant number, since it is smaller than the sum of its proper divisors (26996801388).

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

23140115442 is a wasteful number, since it uses less digits than its factorization.

23140115442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1285561977 (or 1285561974 counting only the distinct ones).

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

Adding to 23140115442 its reverse (24451104132), we get a palindrome (47591219574).

The spelling of 23140115442 in words is "twenty-three billion, one hundred forty million, one hundred fifteen thousand, four hundred forty-two".