1421132331 has 16 divisors (see below), whose sum is σ = 1918788480. Its totient is φ = 935478720.

The previous prime is 1421132309. The next prime is 1421132347. The reversal of 1421132331 is 1332311241.

It is not a de Polignac number, because 1421132331 - 2⁶ = 1421132267 is a prime.

It is a super-2 number, since 2×1421132331² = 4039234204426987122, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1421132298 and 1421132307.

It is not an unprimeable number, because it can be changed into a prime (1421132381) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 213256 + ... + 219818.

It is an arithmetic number, because the mean of its divisors is an integer number (119924280).

Almost surely, 2^1421132331 is an apocalyptic number.

1421132331 is a deficient number, since it is larger than the sum of its proper divisors (497656149).

1421132331 is an equidigital number, since it uses as much as digits as its factorization.

1421132331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7466.

The product of its digits is 432, while the sum is 21.

The square root of 1421132331 is about 37697.9088412076. The cubic root of 1421132331 is about 1124.2895480769.

Adding to 1421132331 its reverse (1332311241), we get a palindrome (2753443572).

The spelling of 1421132331 in words is "one billion, four hundred twenty-one million, one hundred thirty-two thousand, three hundred thirty-one".