1230020231111 has 32 divisors (see below), whose sum is σ = 1432706531328. Its totient is φ = 1034245946880.

The previous prime is 1230020231087. The next prime is 1230020231113. The reversal of 1230020231111 is 1111320200321.

It is a cyclic number.

It is not a de Polignac number, because 1230020231111 - 2⁶ = 1230020231047 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1230020231111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1230020231113) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 84050651 + ... + 84065283.

It is an arithmetic number, because the mean of its divisors is an integer number (44772079104).

Almost surely, 2^{1230020231111} is an apocalyptic number.

1230020231111 is a deficient number, since it is larger than the sum of its proper divisors (202686300217).

1230020231111 is a wasteful number, since it uses less digits than its factorization.

1230020231111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15591.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 1230020231111 its reverse (1111320200321), we get a palindrome (2341340431432).

The spelling of 1230020231111 in words is "one trillion, two hundred thirty billion, twenty million, two hundred thirty-one thousand, one hundred eleven".