1230201331 has 2 divisors, whose sum is σ = 1230201332. Its totient is φ = 1230201330.

The previous prime is 1230201317. The next prime is 1230201337. The reversal of 1230201331 is 1331020321.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1230201331 - 2²³ = 1221812723 is a prime.

It is a super-2 number, since 2×1230201331² = 3026790629588343122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1230201337) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 615100665 + 615100666.

It is an arithmetic number, because the mean of its divisors is an integer number (615100666).

Almost surely, 2^1230201331 is an apocalyptic number.

1230201331 is a deficient number, since it is larger than the sum of its proper divisors (1).

1230201331 is an equidigital number, since it uses as much as digits as its factorization.

1230201331 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 1230201331 is about 35074.2260213964. The cubic root of 1230201331 is about 1071.4997256728.

Adding to 1230201331 its reverse (1331020321), we get a palindrome (2561221652).

The spelling of 1230201331 in words is "one billion, two hundred thirty million, two hundred one thousand, three hundred thirty-one".