231366747261 has 8 divisors (see below), whose sum is σ = 332218919200. Its totient is φ = 142379536752.

The previous prime is 231366747259. The next prime is 231366747379. The reversal of 231366747261 is 162747663132.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 231366747261 - 2¹ = 231366747259 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 231366747261.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231366747061) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2966240311 + ... + 2966240388.

It is an arithmetic number, because the mean of its divisors is an integer number (41527364900).

Almost surely, 2^231366747261 is an apocalyptic number.

It is an amenable number.

231366747261 is a deficient number, since it is larger than the sum of its proper divisors (100852171939).

231366747261 is a wasteful number, since it uses less digits than its factorization.

231366747261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5932480715.

The product of its digits is 1524096, while the sum is 48.

The spelling of 231366747261 in words is "two hundred thirty-one billion, three hundred sixty-six million, seven hundred forty-seven thousand, two hundred sixty-one".