1431020231 has 8 divisors (see below), whose sum is σ = 1449255600. Its totient is φ = 1412832960.

The previous prime is 1431020221. The next prime is 1431020249. The reversal of 1431020231 is 1320201341.

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 1431020231 - 2³⁰ = 357278407 is a prime.

It is a super-2 number, since 2×1431020231² = 4095637803062586722, 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 (1431020221) 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, 49865 + ... + 73133.

It is an arithmetic number, because the mean of its divisors is an integer number (181156950).

Almost surely, 2^1431020231 is an apocalyptic number.

1431020231 is a deficient number, since it is larger than the sum of its proper divisors (18235369).

1431020231 is an equidigital number, since it uses as much as digits as its factorization.

1431020231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24049.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 1431020231 is about 37828.8280415875. The cubic root of 1431020231 is about 1126.8910367526.

Adding to 1431020231 its reverse (1320201341), we get a palindrome (2751221572).

The spelling of 1431020231 in words is "one billion, four hundred thirty-one million, twenty thousand, two hundred thirty-one".