1230021440142 has 32 divisors (see below), whose sum is σ = 2683766214144. Its totient is φ = 372722232000.

The previous prime is 1230021440111. The next prime is 1230021440161. The reversal of 1230021440142 is 2410441200321.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1995898 + ... + 2538434.

It is an arithmetic number, because the mean of its divisors is an integer number (83867694192).

Almost surely, 2^{1230021440142} is an apocalyptic number.

1230021440142 is an abundant number, since it is smaller than the sum of its proper divisors (1453744774002).

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

1230021440142 is a wasteful number, since it uses less digits than its factorization.

1230021440142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 576904.

The product of its (nonzero) digits is 1536, while the sum is 24.

Adding to 1230021440142 its reverse (2410441200321), we get a palindrome (3640462640463).

The spelling of 1230021440142 in words is "one trillion, two hundred thirty billion, twenty-one million, four hundred forty thousand, one hundred forty-two".