11723123521534 has 16 divisors (see below), whose sum is σ = 17786440427760. Its totient is φ = 5794340967360.

The previous prime is 11723123521513. The next prime is 11723123521541. The reversal of 11723123521534 is 43512532132711.

It is a super-3 number, since 3×11723123521534³ (a number of 40 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6969804 + ... + 8486719.

It is an arithmetic number, because the mean of its divisors is an integer number (1111652526735).

Almost surely, 2^{11723123521534} is an apocalyptic number.

11723123521534 is a deficient number, since it is larger than the sum of its proper divisors (6063316906226).

11723123521534 is a wasteful number, since it uses less digits than its factorization.

11723123521534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15460875.

The product of its digits is 151200, while the sum is 40.

The spelling of 11723123521534 in words is "eleven trillion, seven hundred twenty-three billion, one hundred twenty-three million, five hundred twenty-one thousand, five hundred thirty-four".