1212012031 has 2 divisors, whose sum is σ = 1212012032. Its totient is φ = 1212012030.

The previous prime is 1212012017. The next prime is 1212012047. The reversal of 1212012031 is 1302102121.

It is a weak prime.

It is an emirp because it is prime and its reverse (1302102121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1212012031 - 2⁷ = 1212011903 is a prime.

It is a super-2 number, since 2×1212012031² = 2937946326577489922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1212012001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 606006015 + 606006016.

It is an arithmetic number, because the mean of its divisors is an integer number (606006016).

Almost surely, 2^1212012031 is an apocalyptic number.

1212012031 is a deficient number, since it is larger than the sum of its proper divisors (1).

1212012031 is an equidigital number, since it uses as much as digits as its factorization.

1212012031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 1212012031 is about 34813.9631613524. The cubic root of 1212012031 is about 1066.1925501120.

Adding to 1212012031 its reverse (1302102121), we get a palindrome (2514114152).

The spelling of 1212012031 in words is "one billion, two hundred twelve million, twelve thousand, thirty-one".