102042311302 has 4 divisors (see below), whose sum is σ = 153063466956. Its totient is φ = 51021155650.

The previous prime is 102042311201. The next prime is 102042311311. The reversal of 102042311302 is 203113240201.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 203113240201 = 83233 ⋅2440297.

It is a self number, because there is not a number n which added to its sum of digits gives 102042311302.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25510577824 + ... + 25510577827.

It is an arithmetic number, because the mean of its divisors is an integer number (38265866739).

Almost surely, 2^102042311302 is an apocalyptic number.

102042311302 is a deficient number, since it is larger than the sum of its proper divisors (51021155654).

102042311302 is an equidigital number, since it uses as much as digits as its factorization.

102042311302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51021155653.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 102042311302 its reverse (203113240201), we get a palindrome (305155551503).

The spelling of 102042311302 in words is "one hundred two billion, forty-two million, three hundred eleven thousand, three hundred two".