20123174354 has 16 divisors (see below), whose sum is σ = 30576174720. Its totient is φ = 9931194000.

The previous prime is 20123174353. The next prime is 20123174369. The reversal of 20123174354 is 45347132102.

It is a self number, because there is not a number n which added to its sum of digits gives 20123174354.

It is not an unprimeable number, because it can be changed into a prime (20123174353) 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, 553229 + ... + 588479.

It is an arithmetic number, because the mean of its divisors is an integer number (1911010920).

Almost surely, 2^20123174354 is an apocalyptic number.

20123174354 is a deficient number, since it is larger than the sum of its proper divisors (10453000366).

20123174354 is a wasteful number, since it uses less digits than its factorization.

20123174354 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38945.

The product of its (nonzero) digits is 20160, while the sum is 32.

The spelling of 20123174354 in words is "twenty billion, one hundred twenty-three million, one hundred seventy-four thousand, three hundred fifty-four".