23013143042 has 4 divisors (see below), whose sum is σ = 34519714566. Its totient is φ = 11506571520.

The previous prime is 23013142993. The next prime is 23013143063. The reversal of 23013143042 is 24034131032.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 13563164521 + 9449978521 = 116461^2 + 97211^2 .

It is a junction number, because it is equal to n+sod(n) for n = 23013142999 and 23013143017.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5753285759 + ... + 5753285762.

Almost surely, 2^23013143042 is an apocalyptic number.

23013143042 is a deficient number, since it is larger than the sum of its proper divisors (11506571524).

23013143042 is a wasteful number, since it uses less digits than its factorization.

23013143042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11506571523.

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 23013143042 its reverse (24034131032), we get a palindrome (47047274074).

The spelling of 23013143042 in words is "twenty-three billion, thirteen million, one hundred forty-three thousand, forty-two".