1231302212 has 24 divisors (see below), whose sum is σ = 2463674304. Its totient is φ = 527471712.

The previous prime is 1231302209. The next prime is 1231302221. The reversal of 1231302212 is 2122031321.

It is a super-2 number, since 2×1231302212² = 3032210274552185888, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66743 + ... + 83169.

It is an arithmetic number, because the mean of its divisors is an integer number (102653096).

Almost surely, 2^1231302212 is an apocalyptic number.

It is an amenable number.

1231302212 is an abundant number, since it is smaller than the sum of its proper divisors (1232372092).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1231302212 is a wasteful number, since it uses less digits than its factorization.

1231302212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19115 (or 19113 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 1231302212 is about 35089.9161013531. The cubic root of 1231302212 is about 1071.8192511494.

Adding to 1231302212 its reverse (2122031321), we get a palindrome (3353333533).

The spelling of 1231302212 in words is "one billion, two hundred thirty-one million, three hundred two thousand, two hundred twelve".