321147207123 has 16 divisors (see below), whose sum is σ = 429950151840. Its totient is φ = 213221949696.

The previous prime is 321147207109. The next prime is 321147207131. The reversal of 321147207123 is 321702741123.

It is not a de Polignac number, because 321147207123 - 2⁸ = 321147206867 is a prime.

It is not an unprimeable number, because it can be changed into a prime (321147207133) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1643461 + ... + 1828457.

It is an arithmetic number, because the mean of its divisors is an integer number (26871884490).

Almost surely, 2^321147207123 is an apocalyptic number.

321147207123 is a deficient number, since it is larger than the sum of its proper divisors (108802944717).

321147207123 is a wasteful number, since it uses less digits than its factorization.

321147207123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187366.

The product of its (nonzero) digits is 14112, while the sum is 33.

Adding to 321147207123 its reverse (321702741123), we get a palindrome (642849948246).

The spelling of 321147207123 in words is "three hundred twenty-one billion, one hundred forty-seven million, two hundred seven thousand, one hundred twenty-three".