20423505302 has 16 divisors (see below), whose sum is σ = 31494292992. Its totient is φ = 9928285800.

The previous prime is 20423505301. The next prime is 20423505317. The reversal of 20423505302 is 20350532402.

It is a super-2 number, since 2×20423505302² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20423505301) 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, 705248 + ... + 733635.

It is an arithmetic number, because the mean of its divisors is an integer number (1968393312).

Almost surely, 2^20423505302 is an apocalyptic number.

20423505302 is a deficient number, since it is larger than the sum of its proper divisors (11070787690).

20423505302 is a wasteful number, since it uses less digits than its factorization.

20423505302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1439083.

The product of its (nonzero) digits is 7200, while the sum is 26.

The spelling of 20423505302 in words is "twenty billion, four hundred twenty-three million, five hundred five thousand, three hundred two".