20345201023502 has 8 divisors (see below), whose sum is σ = 30750761852712. Its totient is φ = 10094947072600.

The previous prime is 20345201023471. The next prime is 20345201023519. The reversal of 20345201023502 is 20532010254302.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38826719249 + ... + 38826719772.

It is an arithmetic number, because the mean of its divisors is an integer number (3843845231589).

Almost surely, 2^{20345201023502} is an apocalyptic number.

20345201023502 is a deficient number, since it is larger than the sum of its proper divisors (10405560829210).

20345201023502 is a wasteful number, since it uses less digits than its factorization.

20345201023502 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77653439154.

The product of its (nonzero) digits is 14400, while the sum is 29.

Adding to 20345201023502 its reverse (20532010254302), we get a palindrome (40877211277804).

The spelling of 20345201023502 in words is "twenty trillion, three hundred forty-five billion, two hundred one million, twenty-three thousand, five hundred two".