1212103331 has 2 divisors, whose sum is σ = 1212103332. Its totient is φ = 1212103330.

The previous prime is 1212103303. The next prime is 1212103337. The reversal of 1212103331 is 1333012121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1212103331 - 2¹⁴ = 1212086947 is a prime.

It is a super-2 number, since 2×1212103331² = 2938388970042591122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1212103337) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 606051665 + 606051666.

It is an arithmetic number, because the mean of its divisors is an integer number (606051666).

Almost surely, 2^1212103331 is an apocalyptic number.

1212103331 is a deficient number, since it is larger than the sum of its proper divisors (1).

1212103331 is an equidigital number, since it uses as much as digits as its factorization.

1212103331 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 17.

The square root of 1212103331 is about 34815.2743921400. The cubic root of 1212103331 is about 1066.2193212807.

Adding to 1212103331 its reverse (1333012121), we get a palindrome (2545115452).

The spelling of 1212103331 in words is "one billion, two hundred twelve million, one hundred three thousand, three hundred thirty-one".