20102345113115 has 4 divisors (see below), whose sum is σ = 24122814135744. Its totient is φ = 16081876090488.

The previous prime is 20102345113069. The next prime is 20102345113129. The reversal of 20102345113115 is 51131154320102.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20102345113115 is a prime.

It is a Duffinian 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, 2010234511307 + ... + 2010234511316.

It is an arithmetic number, because the mean of its divisors is an integer number (6030703533936).

Almost surely, 2^{20102345113115} is an apocalyptic number.

20102345113115 is a deficient number, since it is larger than the sum of its proper divisors (4020469022629).

20102345113115 is an equidigital number, since it uses as much as digits as its factorization.

20102345113115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4020469022628.

The product of its (nonzero) digits is 3600, while the sum is 29.

Adding to 20102345113115 its reverse (51131154320102), we get a palindrome (71233499433217).

The spelling of 20102345113115 in words is "twenty trillion, one hundred two billion, three hundred forty-five million, one hundred thirteen thousand, one hundred fifteen".