1142123211312 has 80 divisors (see below), whose sum is σ = 3002662421472. Its totient is φ = 374032465920.

The previous prime is 1142123211217. The next prime is 1142123211343. The reversal of 1142123211312 is 2131123212411.

It is a super-2 number, since 2×1142123211312² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 257389 + ... + 1533132.

Almost surely, 2^{1142123211312} is an apocalyptic number.

1142123211312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1142123211312 is an abundant number, since it is smaller than the sum of its proper divisors (1860539210160).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1142123211312 is a wasteful number, since it uses less digits than its factorization.

1142123211312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1790766 (or 1790760 counting only the distinct ones).

The product of its digits is 576, while the sum is 24.

Adding to 1142123211312 its reverse (2131123212411), we get a palindrome (3273246423723).

The spelling of 1142123211312 in words is "one trillion, one hundred forty-two billion, one hundred twenty-three million, two hundred eleven thousand, three hundred twelve".