1231030130111 has 16 divisors (see below), whose sum is σ = 1284063248160. Its totient is φ = 1179128845440.

The previous prime is 1231030130051. The next prime is 1231030130117. The reversal of 1231030130111 is 1110310301321.

It is a cyclic number.

It is not a de Polignac number, because 1231030130111 - 2²⁶ = 1230963021247 is a prime.

It is a super-2 number, since 2×1231030130111² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1231030130111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1231030130117) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4490981 + ... + 4757201.

It is an arithmetic number, because the mean of its divisors is an integer number (80253953010).

Almost surely, 2^{1231030130111} is an apocalyptic number.

1231030130111 is a deficient number, since it is larger than the sum of its proper divisors (53033118049).

1231030130111 is a wasteful number, since it uses less digits than its factorization.

1231030130111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 268346.

The product of its (nonzero) digits is 54, while the sum is 17.

Adding to 1231030130111 its reverse (1110310301321), we get a palindrome (2341340431432).

The spelling of 1231030130111 in words is "one trillion, two hundred thirty-one billion, thirty million, one hundred thirty thousand, one hundred eleven".