20211001023 has 8 divisors (see below), whose sum is σ = 26949353008. Its totient is φ = 13473324864.

The previous prime is 20211001007. The next prime is 20211001037. The reversal of 20211001023 is 32010011202.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20211001023 - 2⁴ = 20211001007 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20211001003) 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, 94486 + ... + 222147.

It is an arithmetic number, because the mean of its divisors is an integer number (3368669126).

Almost surely, 2^20211001023 is an apocalyptic number.

20211001023 is a deficient number, since it is larger than the sum of its proper divisors (6738351985).

20211001023 is a wasteful number, since it uses less digits than its factorization.

20211001023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 337913.

The product of its (nonzero) digits is 24, while the sum is 12.

Adding to 20211001023 its reverse (32010011202), we get a palindrome (52221012225).

The spelling of 20211001023 in words is "twenty billion, two hundred eleven million, one thousand, twenty-three".