23144155012340 has 12 divisors (see below), whose sum is σ = 48602725525956. Its totient is φ = 9257662004928.

The previous prime is 23144155012337. The next prime is 23144155012399. The reversal of 23144155012340 is 4321055144132.

It can be written as a sum of positive squares in 2 ways, for example, as 18076595748964 + 5067559263376 = 4251658^2 + 2251124^2 .

It is a super-2 number, since 2×23144155012340² (a number of 28 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 23144155012340.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 578603875289 + ... + 578603875328.

It is an arithmetic number, because the mean of its divisors is an integer number (4050227127163).

Almost surely, 2^{23144155012340} is an apocalyptic number.

23144155012340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23144155012340 is an abundant number, since it is smaller than the sum of its proper divisors (25458570513616).

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

23144155012340 is a wasteful number, since it uses less digits than its factorization.

23144155012340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1157207750626 (or 1157207750624 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 35.

The spelling of 23144155012340 in words is "twenty-three trillion, one hundred forty-four billion, one hundred fifty-five million, twelve thousand, three hundred forty".