321310012102 has 4 divisors (see below), whose sum is σ = 481965018156. Its totient is φ = 160655006050.

The previous prime is 321310012061. The next prime is 321310012103. The reversal of 321310012102 is 201210013123.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321310012103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80327503024 + ... + 80327503027.

It is an arithmetic number, because the mean of its divisors is an integer number (120491254539).

Almost surely, 2^321310012102 is an apocalyptic number.

321310012102 is a deficient number, since it is larger than the sum of its proper divisors (160655006054).

321310012102 is a wasteful number, since it uses less digits than its factorization.

321310012102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160655006053.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 321310012102 its reverse (201210013123), we get a palindrome (522520025225).

The spelling of 321310012102 in words is "three hundred twenty-one billion, three hundred ten million, twelve thousand, one hundred two".