383231137261 has 8 divisors (see below), whose sum is σ = 437987312640. Its totient is φ = 328477179408.

The previous prime is 383231137189. The next prime is 383231137301. The reversal of 383231137261 is 162731132383.

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

It is not a de Polignac number, because 383231137261 - 2²³ = 383222748653 is a prime.

It is a super-2 number, since 2×383231137261² (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 (383231147261) 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, 165901 + ... + 891058.

It is an arithmetic number, because the mean of its divisors is an integer number (54748414080).

Almost surely, 2^383231137261 is an apocalyptic number.

It is an amenable number.

383231137261 is a deficient number, since it is larger than the sum of its proper divisors (54756175379).

383231137261 is a wasteful number, since it uses less digits than its factorization.

383231137261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1108763.

The product of its digits is 108864, while the sum is 40.

The spelling of 383231137261 in words is "three hundred eighty-three billion, two hundred thirty-one million, one hundred thirty-seven thousand, two hundred sixty-one".