1230112111031 has 4 divisors (see below), whose sum is σ = 1302471646992. Its totient is φ = 1157752575072.

The previous prime is 1230112110991. The next prime is 1230112111037. The reversal of 1230112111031 is 1301112110321.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1230112111031 - 2¹⁸ = 1230111848887 is a prime.

It is a super-2 number, since 2×1230112111031² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (17), and also a Moran number because the ratio is a prime number: 72359535943 = 1230112111031 / (1 + 2 + 3 + 0 + 1 + 1 + 2 + 1 + 1 + 1 + 0 + 3 + 1).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1230112111037) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36179767955 + ... + 36179767988.

It is an arithmetic number, because the mean of its divisors is an integer number (325617911748).

Almost surely, 2^{1230112111031} is an apocalyptic number.

1230112111031 is a deficient number, since it is larger than the sum of its proper divisors (72359535961).

1230112111031 is an equidigital number, since it uses as much as digits as its factorization.

1230112111031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72359535960.

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

Adding to 1230112111031 its reverse (1301112110321), we get a palindrome (2531224221352).

The spelling of 1230112111031 in words is "one trillion, two hundred thirty billion, one hundred twelve million, one hundred eleven thousand, thirty-one".