321214243031 has 4 divisors (see below), whose sum is σ = 350415537864. Its totient is φ = 292012948200.

The previous prime is 321214243013. The next prime is 321214243037. The reversal of 321214243031 is 130342412123.

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

It is a cyclic number.

It is not a de Polignac number, because 321214243031 - 2²² = 321210048727 is a prime.

It is a super-2 number, since 2×321214243031² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321214243037) 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, 14600647400 + ... + 14600647421.

It is an arithmetic number, because the mean of its divisors is an integer number (87603884466).

Almost surely, 2^321214243031 is an apocalyptic number.

321214243031 is a deficient number, since it is larger than the sum of its proper divisors (29201294833).

321214243031 is a wasteful number, since it uses less digits than its factorization.

321214243031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29201294832.

The product of its (nonzero) digits is 3456, while the sum is 26.

Adding to 321214243031 its reverse (130342412123), we get a palindrome (451556655154).

The spelling of 321214243031 in words is "three hundred twenty-one billion, two hundred fourteen million, two hundred forty-three thousand, thirty-one".