231402014134321 has 4 divisors (see below), whose sum is σ = 233449819569252. Its totient is φ = 229354208699392.

The previous prime is 231402014134301. The next prime is 231402014134339. The reversal of 231402014134321 is 123431410204132.

It is a happy number.

231402014134321 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 45416816640000 + 185985197494321 = 6739200^2 + 13637639^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-231402014134321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (231402014134301) 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, 1023902717296 + ... + 1023902717521.

It is an arithmetic number, because the mean of its divisors is an integer number (58362454892313).

Almost surely, 2^{231402014134321} is an apocalyptic number.

It is an amenable number.

231402014134321 is a deficient number, since it is larger than the sum of its proper divisors (2047805434931).

231402014134321 is a wasteful number, since it uses less digits than its factorization.

231402014134321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2047805434930.

The product of its (nonzero) digits is 13824, while the sum is 31.

Adding to 231402014134321 its reverse (123431410204132), we get a palindrome (354833424338453).

The spelling of 231402014134321 in words is "two hundred thirty-one trillion, four hundred two billion, fourteen million, one hundred thirty-four thousand, three hundred twenty-one".