1230311211131 has 8 divisors (see below), whose sum is σ = 1233198570240. Its totient is φ = 1227426545128.

The previous prime is 1230311211127. The next prime is 1230311211139. The reversal of 1230311211131 is 1311121130321.

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 1230311211131 - 2² = 1230311211127 is a prime.

It is a super-2 number, since 2×1230311211131² (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 (1230311211139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 242930 + ... + 1587336.

It is an arithmetic number, because the mean of its divisors is an integer number (154149821280).

Almost surely, 2^{1230311211131} is an apocalyptic number.

1230311211131 is a deficient number, since it is larger than the sum of its proper divisors (2887359109).

1230311211131 is a wasteful number, since it uses less digits than its factorization.

1230311211131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1346553.

The product of its (nonzero) digits is 108, while the sum is 20.

Adding to 1230311211131 its reverse (1311121130321), we get a palindrome (2541432341452).

The spelling of 1230311211131 in words is "one trillion, two hundred thirty billion, three hundred eleven million, two hundred eleven thousand, one hundred thirty-one".