1230090331 has 4 divisors (see below), whose sum is σ = 1230886000. Its totient is φ = 1229294664.

The previous prime is 1230090311. The next prime is 1230090371. The reversal of 1230090331 is 1330900321.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1330900321 = 167 ⋅7969463.

It is a cyclic number.

It is not a de Polignac number, because 1230090331 - 2⁷ = 1230090203 is a prime.

It is a super-2 number, since 2×1230090331² = 3026244444839379122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1230090311) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 395511 + ... + 398608.

It is an arithmetic number, because the mean of its divisors is an integer number (307721500).

Almost surely, 2^1230090331 is an apocalyptic number.

1230090331 is a deficient number, since it is larger than the sum of its proper divisors (795669).

1230090331 is an equidigital number, since it uses as much as digits as its factorization.

1230090331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 795668.

The product of its (nonzero) digits is 486, while the sum is 22.

The square root of 1230090331 is about 35072.6436271918. The cubic root of 1230090331 is about 1071.4674978729.

Adding to 1230090331 its reverse (1330900321), we get a palindrome (2560990652).

The spelling of 1230090331 in words is "one billion, two hundred thirty million, ninety thousand, three hundred thirty-one".