1401031231 has 8 divisors (see below), whose sum is σ = 1406419344. Its totient is φ = 1395651840.

The previous prime is 1401031211. The next prime is 1401031241. The reversal of 1401031231 is 1321301041.

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

It is a cyclic number.

It is not a de Polignac number, because 1401031231 - 2⁵ = 1401031199 is a prime.

It is a super-2 number, since 2×1401031231² = 3925777020474750722, which 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 (1401031211) 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, 629701 + ... + 631921.

It is an arithmetic number, because the mean of its divisors is an integer number (175802418).

Almost surely, 2^1401031231 is an apocalyptic number.

1401031231 is a deficient number, since it is larger than the sum of its proper divisors (5388113).

1401031231 is a wasteful number, since it uses less digits than its factorization.

1401031231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4361.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 1401031231 is about 37430.3517349223. The cubic root of 1401031231 is about 1118.9635476959.

Adding to 1401031231 its reverse (1321301041), we get a palindrome (2722332272).

The spelling of 1401031231 in words is "one billion, four hundred one million, thirty-one thousand, two hundred thirty-one".