1201211102131 has 8 divisors (see below), whose sum is σ = 1204652012144. Its totient is φ = 1197773740800.

The previous prime is 1201211102093. The next prime is 1201211102177. The reversal of 1201211102131 is 1312011121021.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1201211102131 is a prime.

It is a super-2 number, since 2×1201211102131² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1201211102191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 208470 + ... + 1563931.

It is an arithmetic number, because the mean of its divisors is an integer number (150581501518).

Almost surely, 2^{1201211102131} is an apocalyptic number.

1201211102131 is a deficient number, since it is larger than the sum of its proper divisors (3440910013).

1201211102131 is a wasteful number, since it uses less digits than its factorization.

1201211102131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1774341.

The product of its (nonzero) digits is 24, while the sum is 16.

Adding to 1201211102131 its reverse (1312011121021), we get a palindrome (2513222223152).

The spelling of 1201211102131 in words is "one trillion, two hundred one billion, two hundred eleven million, one hundred two thousand, one hundred thirty-one".