231321301007 has 4 divisors (see below), whose sum is σ = 231451039920. Its totient is φ = 231191562096.

The previous prime is 231321300979. The next prime is 231321301019. The reversal of 231321301007 is 700103123132.

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 231321301007 - 2⁸ = 231321300751 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231321301067) 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, 64866782 + ... + 64870347.

It is an arithmetic number, because the mean of its divisors is an integer number (57862759980).

Almost surely, 2^231321301007 is an apocalyptic number.

231321301007 is a deficient number, since it is larger than the sum of its proper divisors (129738913).

231321301007 is a wasteful number, since it uses less digits than its factorization.

231321301007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129738912.

The product of its (nonzero) digits is 756, while the sum is 23.

Adding to 231321301007 its reverse (700103123132), we get a palindrome (931424424139).

The spelling of 231321301007 in words is "two hundred thirty-one billion, three hundred twenty-one million, three hundred one thousand, seven".