1211233100131 has 8 divisors (see below), whose sum is σ = 1216525489200. Its totient is φ = 1205944416000.

The previous prime is 1211233100101. The next prime is 1211233100167. The reversal of 1211233100131 is 1310013321121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1211233100131 - 2²⁷ = 1211098882403 is a prime.

It is a super-2 number, since 2×1211233100131² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1211233100099 and 1211233100108.

It is not an unprimeable number, because it can be changed into a prime (1211233100101) 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 7 ways as a sum of consecutive naturals, for example, 269946 + ... + 1579663.

It is an arithmetic number, because the mean of its divisors is an integer number (152065686150).

Almost surely, 2^{1211233100131} is an apocalyptic number.

1211233100131 is a deficient number, since it is larger than the sum of its proper divisors (5292389069).

1211233100131 is a wasteful number, since it uses less digits than its factorization.

1211233100131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1852469.

The product of its (nonzero) digits is 108, while the sum is 19.

Adding to 1211233100131 its reverse (1310013321121), we get a palindrome (2521246421252).

The spelling of 1211233100131 in words is "one trillion, two hundred eleven billion, two hundred thirty-three million, one hundred thousand, one hundred thirty-one".