23012140134 has 32 divisors (see below), whose sum is σ = 48885386976. Its totient is φ = 7196710400.

The previous prime is 23012140091. The next prime is 23012140163. The reversal of 23012140134 is 43104121032.

It is a self number, because there is not a number n which added to its sum of digits gives 23012140134.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 323517 + ... + 388184.

It is an arithmetic number, because the mean of its divisors is an integer number (1527668343).

Almost surely, 2^23012140134 is an apocalyptic number.

23012140134 is an abundant number, since it is smaller than the sum of its proper divisors (25873246842).

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

23012140134 is a wasteful number, since it uses less digits than its factorization.

23012140134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 712040.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 23012140134 its reverse (43104121032), we get a palindrome (66116261166).

The spelling of 23012140134 in words is "twenty-three billion, twelve million, one hundred forty thousand, one hundred thirty-four".