23513542113445 has 32 divisors (see below), whose sum is σ = 29894917077216. Its totient is φ = 17693125632000.

The previous prime is 23513542113361. The next prime is 23513542113461. The reversal of 23513542113445 is 54431124531532.

It can be written as a sum of positive squares in 16 ways, for example, as 1293546824964 + 22219995288481 = 1137342^2 + 4713809^2 .

It is not a de Polignac number, because 23513542113445 - 2²¹ = 23513540016293 is a prime.

It is a Duffinian number.

It is a congruent number.

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, 987910545 + ... + 987934345.

It is an arithmetic number, because the mean of its divisors is an integer number (934216158663).

Almost surely, 2^{23513542113445} is an apocalyptic number.

It is an amenable number.

23513542113445 is a deficient number, since it is larger than the sum of its proper divisors (6381374963771).

23513542113445 is a wasteful number, since it uses less digits than its factorization.

23513542113445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30681.

The product of its digits is 864000, while the sum is 43.

Adding to 23513542113445 its reverse (54431124531532), we get a palindrome (77944666644977).

The spelling of 23513542113445 in words is "twenty-three trillion, five hundred thirteen billion, five hundred forty-two million, one hundred thirteen thousand, four hundred forty-five".