23440455123 has 16 divisors (see below), whose sum is σ = 31577024160. Its totient is φ = 15465758976.

The previous prime is 23440455121. The next prime is 23440455127. The reversal of 23440455123 is 32155404432.

It is not a de Polignac number, because 23440455123 - 2¹ = 23440455121 is a prime.

It is not an unprimeable number, because it can be changed into a prime (23440455121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 245911 + ... + 327647.

It is an arithmetic number, because the mean of its divisors is an integer number (1973564010).

Almost surely, 2^23440455123 is an apocalyptic number.

23440455123 is a deficient number, since it is larger than the sum of its proper divisors (8136569037).

23440455123 is a wasteful number, since it uses less digits than its factorization.

23440455123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82726.

The product of its (nonzero) digits is 57600, while the sum is 33.

Adding to 23440455123 its reverse (32155404432), we get a palindrome (55595859555).

The spelling of 23440455123 in words is "twenty-three billion, four hundred forty million, four hundred fifty-five thousand, one hundred twenty-three".