901311231 has 8 divisors (see below), whose sum is σ = 1234228144. Its totient is φ = 584634240.

The previous prime is 901311211. The next prime is 901311251. The reversal of 901311231 is 132113109.

It is an interprime number because it is at equal distance from previous prime (901311211) and next prime (901311251).

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

It is not a de Polignac number, because 901311231 - 2⁹ = 901310719 is a prime.

It is a super-2 number, since 2×901311231² = 1624723870253470722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 901311198 and 901311207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (901311211) 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, 4059850 + ... + 4060071.

It is an arithmetic number, because the mean of its divisors is an integer number (154278518).

Almost surely, 2^901311231 is an apocalyptic number.

901311231 is a deficient number, since it is larger than the sum of its proper divisors (332916913).

901311231 is a wasteful number, since it uses less digits than its factorization.

901311231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8119961.

The product of its (nonzero) digits is 162, while the sum is 21.

The square root of 901311231 is about 30021.8458959472. The cubic root of 901311231 is about 965.9580384192.

The spelling of 901311231 in words is "nine hundred one million, three hundred eleven thousand, two hundred thirty-one".