102142054513 has 4 divisors (see below), whose sum is σ = 102286120180. Its totient is φ = 101997988848.

The previous prime is 102142054501. The next prime is 102142054583. The reversal of 102142054513 is 315450241201.

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

It can be written as a sum of positive squares in 2 ways, for example, as 63618963984 + 38523090529 = 252228^2 + 196273^2 .

It is a cyclic number.

It is not a de Polignac number, because 102142054513 - 2⁵ = 102142054481 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102142054583) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 72031770 + ... + 72033187.

It is an arithmetic number, because the mean of its divisors is an integer number (25571530045).

Almost surely, 2^102142054513 is an apocalyptic number.

It is an amenable number.

102142054513 is a deficient number, since it is larger than the sum of its proper divisors (144065667).

102142054513 is an equidigital number, since it uses as much as digits as its factorization.

102142054513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144065666.

The product of its (nonzero) digits is 4800, while the sum is 28.

Adding to 102142054513 its reverse (315450241201), we get a palindrome (417592295714).

The spelling of 102142054513 in words is "one hundred two billion, one hundred forty-two million, fifty-four thousand, five hundred thirteen".