15420122102451 has 16 divisors (see below), whose sum is σ = 23035464960768. Its totient is φ = 9092946693600.

The previous prime is 15420122102431. The next prime is 15420122102461.

15420122102451 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 15420122102451 - 2¹⁴ = 15420122086067 is a prime.

It is not an unprimeable number, because it can be changed into a prime (15420122102401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6314545095 + ... + 6314547536.

It is an arithmetic number, because the mean of its divisors is an integer number (1439716560048).

Almost surely, 2^{15420122102451} is an apocalyptic number.

15420122102451 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

15420122102451 is a deficient number, since it is larger than the sum of its proper divisors (7615342858317).

15420122102451 is a wasteful number, since it uses less digits than its factorization.

15420122102451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12629092682.

The product of its (nonzero) digits is 6400, while the sum is 30.

It can be divided in two parts, 1542012 and 2102451, that added together give a palindrome (3644463).

The spelling of 15420122102451 in words is "fifteen trillion, four hundred twenty billion, one hundred twenty-two million, one hundred two thousand, four hundred fifty-one".