20211003423 has 48 divisors (see below), whose sum is σ = 32291925120. Its totient is φ = 12101875200.

The previous prime is 20211003413. The next prime is 20211003431. The reversal of 20211003423 is 32430011202.

It is not a de Polignac number, because 20211003423 - 2¹² = 20210999327 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20211003396 and 20211003405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20211003413) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1860618 + ... + 1871448.

It is an arithmetic number, because the mean of its divisors is an integer number (672748440).

Almost surely, 2^20211003423 is an apocalyptic number.

20211003423 is a deficient number, since it is larger than the sum of its proper divisors (12080921697).

20211003423 is a wasteful number, since it uses less digits than its factorization.

20211003423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11280 (or 11277 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 20211003423 its reverse (32430011202), we get a palindrome (52641014625).

The spelling of 20211003423 in words is "twenty billion, two hundred eleven million, three thousand, four hundred twenty-three".