1230000011142 has 192 divisors, whose sum is σ = 2987346700800. Its totient is φ = 330660329472.

The previous prime is 1230000011137. The next prime is 1230000011173. The reversal of 1230000011142 is 2411100000321.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 372838609 + ... + 372841907.

It is an arithmetic number, because the mean of its divisors is an integer number (15559097400).

Almost surely, 2^{1230000011142} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1230000011142, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1493673350400).

1230000011142 is an abundant number, since it is smaller than the sum of its proper divisors (1757346689658).

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

1230000011142 is a wasteful number, since it uses less digits than its factorization.

1230000011142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3627 (or 3604 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 1230000011142 its reverse (2411100000321), we get a palindrome (3641100011463).

The spelling of 1230000011142 in words is "one trillion, two hundred thirty billion, eleven thousand, one hundred forty-two".