20423530302 has 16 divisors (see below), whose sum is σ = 46682355072. Its totient is φ = 5835294360.

The previous prime is 20423530291. The next prime is 20423530321. The reversal of 20423530302 is 20303532402.

It is a super-2 number, since 2×20423530302² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 243137224 + ... + 243137307.

It is an arithmetic number, because the mean of its divisors is an integer number (2917647192).

Almost surely, 2^20423530302 is an apocalyptic number.

20423530302 is an abundant number, since it is smaller than the sum of its proper divisors (26258824770).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20423530302 is a wasteful number, since it uses less digits than its factorization.

20423530302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 486274543.

The product of its (nonzero) digits is 4320, while the sum is 24.

It can be divided in two parts, 20423 and 530302, that added together give a triangular number (550725 = T₁₀₄₉).

The spelling of 20423530302 in words is "twenty billion, four hundred twenty-three million, five hundred thirty thousand, three hundred two".