102346312345 has 4 divisors (see below), whose sum is σ = 122815574820. Its totient is φ = 81877049872.

The previous prime is 102346312337. The next prime is 102346312391. The reversal of 102346312345 is 543213643201.

It is a happy number.

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 45173676681 + 57172635664 = 212541^2 + 239108^2 .

It is a cyclic number.

It is not a de Polignac number, because 102346312345 - 2³ = 102346312337 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 102346312345.

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, 10234631230 + ... + 10234631239.

It is an arithmetic number, because the mean of its divisors is an integer number (30703893705).

Almost surely, 2^102346312345 is an apocalyptic number.

It is an amenable number.

102346312345 is a deficient number, since it is larger than the sum of its proper divisors (20469262475).

102346312345 is an equidigital number, since it uses as much as digits as its factorization.

102346312345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20469262474.

The product of its (nonzero) digits is 51840, while the sum is 34.

Adding to 102346312345 its reverse (543213643201), we get a palindrome (645559955546).

The spelling of 102346312345 in words is "one hundred two billion, three hundred forty-six million, three hundred twelve thousand, three hundred forty-five".