23400212400342 has 64 divisors (see below), whose sum is σ = 52348333201920. Its totient is φ = 7747898508000.

The previous prime is 23400212400329. The next prime is 23400212400349. The reversal of 23400212400342 is 24300421200432.

23400212400342 is a `hidden beast` number, since 2 + 3 + 4 + 0 + 0 + 212 + 400 + 3 + 42 = 666.

It is a super-2 number, since 2×23400212400342² (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23400212400349) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 133809453 + ... + 133984215.

It is an arithmetic number, because the mean of its divisors is an integer number (817942706280).

Almost surely, 2^{23400212400342} is an apocalyptic number.

23400212400342 is an abundant number, since it is smaller than the sum of its proper divisors (28948120801578).

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

23400212400342 is a wasteful number, since it uses less digits than its factorization.

23400212400342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191346 (or 191340 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 27.

Adding to 23400212400342 its reverse (24300421200432), we get a palindrome (47700633600774).

The spelling of 23400212400342 in words is "twenty-three trillion, four hundred billion, two hundred twelve million, four hundred thousand, three hundred forty-two".