123561236326 has 16 divisors (see below), whose sum is σ = 202497024528. Its totient is φ = 56079223200.

The previous prime is 123561236321. The next prime is 123561236347. The reversal of 123561236326 is 623632165321.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123561236321) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4233885 + ... + 4262968.

It is an arithmetic number, because the mean of its divisors is an integer number (12656064033).

Almost surely, 2^123561236326 is an apocalyptic number.

123561236326 is a deficient number, since it is larger than the sum of its proper divisors (78935788202).

123561236326 is a wasteful number, since it uses less digits than its factorization.

123561236326 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8497527.

The product of its digits is 233280, while the sum is 40.

The spelling of 123561236326 in words is "one hundred twenty-three billion, five hundred sixty-one million, two hundred thirty-six thousand, three hundred twenty-six".