1212031201131 has 48 divisors (see below), whose sum is σ = 1862823289600. Its totient is φ = 757238497344.

The previous prime is 1212031201099. The next prime is 1212031201163. The reversal of 1212031201131 is 1311021302121.

It is an interprime number because it is at equal distance from previous prime (1212031201099) and next prime (1212031201163).

It is not a de Polignac number, because 1212031201131 - 2⁵ = 1212031201099 is a prime.

It is a super-2 number, since 2×1212031201131² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1212031201631) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6491970 + ... + 6676056.

Almost surely, 2^{1212031201131} is an apocalyptic number.

1212031201131 is a deficient number, since it is larger than the sum of its proper divisors (650792088469).

1212031201131 is a wasteful number, since it uses less digits than its factorization.

1212031201131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184528 (or 184525 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

Adding to 1212031201131 its reverse (1311021302121), we get a palindrome (2523052503252).

The spelling of 1212031201131 in words is "one trillion, two hundred twelve billion, thirty-one million, two hundred one thousand, one hundred thirty-one".