23111351340 has 96 divisors (see below), whose sum is σ = 80679642624. Its totient is φ = 4802357760.

The previous prime is 23111351311. The next prime is 23111351359. The reversal of 23111351340 is 4315311132.

It is a self number, because there is not a number n which added to its sum of digits gives 23111351340.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2496609 + ... + 2505848.

It is an arithmetic number, because the mean of its divisors is an integer number (840412944).

Almost surely, 2^23111351340 is an apocalyptic number.

23111351340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23111351340 is an abundant number, since it is smaller than the sum of its proper divisors (57568291284).

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

23111351340 is a wasteful number, since it uses less digits than its factorization.

23111351340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5002487 (or 5002485 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 24.

Adding to 23111351340 its reverse (4315311132), we get a palindrome (27426662472).

The spelling of 23111351340 in words is "twenty-three billion, one hundred eleven million, three hundred fifty-one thousand, three hundred forty".