23142156535 has 16 divisors (see below), whose sum is σ = 28001673216. Its totient is φ = 18359798688.

The previous prime is 23142156511. The next prime is 23142156551. The reversal of 23142156535 is 53565124132.

It is not a de Polignac number, because 23142156535 - 2¹³ = 23142148343 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23142156494 and 23142156503.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1712214 + ... + 1725676.

It is an arithmetic number, because the mean of its divisors is an integer number (1750104576).

Almost surely, 2^23142156535 is an apocalyptic number.

23142156535 is a deficient number, since it is larger than the sum of its proper divisors (4859516681).

23142156535 is a wasteful number, since it uses less digits than its factorization.

23142156535 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16302.

The product of its digits is 108000, while the sum is 37.

The spelling of 23142156535 in words is "twenty-three billion, one hundred forty-two million, one hundred fifty-six thousand, five hundred thirty-five".