1212102031 has 12 divisors (see below), whose sum is σ = 1390692592. Its totient is φ = 1034885376.

The previous prime is 1212102019. The next prime is 1212102041. The reversal of 1212102031 is 1302012121.

It is not a de Polignac number, because 1212102031 - 2¹⁵ = 1212069263 is a prime.

It is a super-2 number, since 2×1212102031² = 2938382667108649922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1212102041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 599935 + ... + 601951.

Almost surely, 2^1212102031 is an apocalyptic number.

1212102031 is a deficient number, since it is larger than the sum of its proper divisors (178590561).

1212102031 is an frugal number, since it uses more digits than its factorization.

1212102031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2610 (or 2317 counting only the distinct ones).

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

The square root of 1212102031 is about 34815.2557221687. The cubic root of 1212102031 is about 1066.2189401016.

Adding to 1212102031 its reverse (1302012121), we get a palindrome (2514114152).

The spelling of 1212102031 in words is "one billion, two hundred twelve million, one hundred two thousand, thirty-one".