1020233231111 has 8 divisors (see below), whose sum is σ = 1022520120384. Its totient is φ = 1017946702080.

The previous prime is 1020233231077. The next prime is 1020233231113. The reversal of 1020233231111 is 1111323320201.

It is a happy number.

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 1020233231111 - 2¹⁴ = 1020233214727 is a prime.

It is a super-2 number, since 2×1020233231111² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020233231113) 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, 6047375 + ... + 6213791.

It is an arithmetic number, because the mean of its divisors is an integer number (127815015048).

Almost surely, 2^{1020233231111} is an apocalyptic number.

1020233231111 is a deficient number, since it is larger than the sum of its proper divisors (2286889273).

1020233231111 is a wasteful number, since it uses less digits than its factorization.

1020233231111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180121.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 1020233231111 its reverse (1111323320201), we get a palindrome (2131556551312).

The spelling of 1020233231111 in words is "one trillion, twenty billion, two hundred thirty-three million, two hundred thirty-one thousand, one hundred eleven".