11401831 has 8 divisors (see below), whose sum is σ = 13451264. Its totient is φ = 9457560.

The previous prime is 11401823. The next prime is 11401853. The reversal of 11401831 is 13810411.

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

It is not a de Polignac number, because 11401831 - 2³ = 11401823 is a prime.

It is a super-2 number, since 2×11401831² = 260003500305122, 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 = 11401799 and 11401808.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11401801) 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, 26055 + ... + 26488.

It is an arithmetic number, because the mean of its divisors is an integer number (1681408).

Almost surely, 2^11401831 is an apocalyptic number.

11401831 is a deficient number, since it is larger than the sum of its proper divisors (2049433).

11401831 is an equidigital number, since it uses as much as digits as its factorization.

11401831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52581.

The product of its (nonzero) digits is 96, while the sum is 19.

The square root of 11401831 is about 3376.6597400390. The cubic root of 11401831 is about 225.0737601792.

The spelling of 11401831 in words is "eleven million, four hundred one thousand, eight hundred thirty-one".