2320020400020 has 48 divisors (see below), whose sum is σ = 6498107528640. Its totient is φ = 618476829696.

The previous prime is 2320020399973. The next prime is 2320020400031. The reversal of 2320020400020 is 200040200232.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5910682 + ... + 6290961.

It is an arithmetic number, because the mean of its divisors is an integer number (135377240180).

Almost surely, 2^{2320020400020} is an apocalyptic number.

2320020400020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2320020400020 is an abundant number, since it is smaller than the sum of its proper divisors (4178087128620).

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

2320020400020 is a wasteful number, since it uses less digits than its factorization.

2320020400020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12204824 (or 12204822 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 15.

Adding to 2320020400020 its reverse (200040200232), we get a palindrome (2520060600252).

The spelling of 2320020400020 in words is "two trillion, three hundred twenty billion, twenty million, four hundred thousand, twenty".