20201423044 has 24 divisors (see below), whose sum is σ = 38571801408. Its totient is φ = 9181167840.

The previous prime is 20201423041. The next prime is 20201423057. The reversal of 20201423044 is 44032410202.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is not an unprimeable number, because it can be changed into a prime (20201423041) 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, 327442 + ... + 384214.

It is an arithmetic number, because the mean of its divisors is an integer number (1607158392).

Almost surely, 2^20201423044 is an apocalyptic number.

It is an amenable number.

20201423044 is a deficient number, since it is larger than the sum of its proper divisors (18370378364).

20201423044 is a wasteful number, since it uses less digits than its factorization.

20201423044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64875 (or 64873 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 22.

Adding to 20201423044 its reverse (44032410202), we get a palindrome (64233833246).

The spelling of 20201423044 in words is "twenty billion, two hundred one million, four hundred twenty-three thousand, forty-four".