20143122994 has 16 divisors (see below), whose sum is σ = 30257884800. Its totient is φ = 10057174704.

The previous prime is 20143122983. The next prime is 20143123019. The reversal of 20143122994 is 49922134102.

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 7 ways as a sum of consecutive naturals, for example, 7220952 + ... + 7223740.

It is an arithmetic number, because the mean of its divisors is an integer number (1891117800).

Almost surely, 2^20143122994 is an apocalyptic number.

20143122994 is a deficient number, since it is larger than the sum of its proper divisors (10114761806).

20143122994 is a wasteful number, since it uses less digits than its factorization.

20143122994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6657.

The product of its (nonzero) digits is 31104, while the sum is 37.

The spelling of 20143122994 in words is "twenty billion, one hundred forty-three million, one hundred twenty-two thousand, nine hundred ninety-four".