231321202014 has 32 divisors (see below), whose sum is σ = 556562292480. Its totient is φ = 62613257472.

The previous prime is 231321202009. The next prime is 231321202069. The reversal of 231321202014 is 410202123132.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 144937299 + ... + 144938894.

It is an arithmetic number, because the mean of its divisors is an integer number (17392571640).

Almost surely, 2^231321202014 is an apocalyptic number.

231321202014 is an abundant number, since it is smaller than the sum of its proper divisors (325241090466).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

231321202014 is a wasteful number, since it uses less digits than its factorization.

231321202014 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 289876224.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 231321202014 its reverse (410202123132), we get a palindrome (641523325146).

The spelling of 231321202014 in words is "two hundred thirty-one billion, three hundred twenty-one million, two hundred two thousand, fourteen".