20345461202223 has 24 divisors (see below), whose sum is σ = 30036434304240. Its totient is φ = 13267547913600.

The previous prime is 20345461202173. The next prime is 20345461202273. The reversal of 20345461202223 is 32220216454302.

20345461202223 is a `hidden beast` number, since 2 + 0 + 34 + 5 + 4 + 612 + 0 + 2 + 2 + 2 + 3 = 666.

It is an interprime number because it is at equal distance from previous prime (20345461202173) and next prime (20345461202273).

It is not a de Polignac number, because 20345461202223 - 2⁶ = 20345461202159 is a prime.

It is a super-2 number, since 2×20345461202223² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20345461202273) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 134757358 + ... + 134908251.

It is an arithmetic number, because the mean of its divisors is an integer number (1251518096010).

Almost surely, 2^{20345461202223} is an apocalyptic number.

20345461202223 is a deficient number, since it is larger than the sum of its proper divisors (9690973102017).

20345461202223 is a wasteful number, since it uses less digits than its factorization.

20345461202223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 269665799 (or 269665796 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 36.

Adding to 20345461202223 its reverse (32220216454302), we get a palindrome (52565677656525).

The spelling of 20345461202223 in words is "twenty trillion, three hundred forty-five billion, four hundred sixty-one million, two hundred two thousand, two hundred twenty-three".