1211013120131 has 8 divisors (see below), whose sum is σ = 1239221829120. Its totient is φ = 1182806484552.

The previous prime is 1211013120127. The next prime is 1211013120137. The reversal of 1211013120131 is 1310213101121.

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 1211013120131 - 2² = 1211013120127 is a prime.

It is a super-2 number, since 2×1211013120131² (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 (1211013120137) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 696146 + ... + 1704888.

It is an arithmetic number, because the mean of its divisors is an integer number (154902728640).

Almost surely, 2^{1211013120131} is an apocalyptic number.

1211013120131 is a deficient number, since it is larger than the sum of its proper divisors (28208708989).

1211013120131 is a wasteful number, since it uses less digits than its factorization.

1211013120131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1036705.

The product of its (nonzero) digits is 36, while the sum is 17.

Adding to 1211013120131 its reverse (1310213101121), we get a palindrome (2521226221252).

The spelling of 1211013120131 in words is "one trillion, two hundred eleven billion, thirteen million, one hundred twenty thousand, one hundred thirty-one".