20314133231515 has 4 divisors (see below), whose sum is σ = 24376959877824. Its totient is φ = 16251306585208.

The previous prime is 20314133231507. The next prime is 20314133231531. The reversal of 20314133231515 is 51513233141302.

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

It is a cyclic number.

It is not a de Polignac number, because 20314133231515 - 2³ = 20314133231507 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, 2031413323147 + ... + 2031413323156.

It is an arithmetic number, because the mean of its divisors is an integer number (6094239969456).

Almost surely, 2^{20314133231515} is an apocalyptic number.

20314133231515 is a deficient number, since it is larger than the sum of its proper divisors (4062826646309).

20314133231515 is an equidigital number, since it uses as much as digits as its factorization.

20314133231515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4062826646308.

The product of its (nonzero) digits is 32400, while the sum is 34.

Adding to 20314133231515 its reverse (51513233141302), we get a palindrome (71827366372817).

The spelling of 20314133231515 in words is "twenty trillion, three hundred fourteen billion, one hundred thirty-three million, two hundred thirty-one thousand, five hundred fifteen".