1142142123430 has 96 divisors (see below), whose sum is σ = 2722787695872. Its totient is φ = 335051558400.

The previous prime is 1142142123391. The next prime is 1142142123461. The reversal of 1142142123430 is 343212412411.

It is a happy number.

It is a super-2 number, since 2×1142142123430² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2343736 + ... + 2788795.

It is an arithmetic number, because the mean of its divisors is an integer number (28362371832).

Almost surely, 2^{1142142123430} is an apocalyptic number.

1142142123430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1142142123430 is an abundant number, since it is smaller than the sum of its proper divisors (1580645572442).

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

1142142123430 is a wasteful number, since it uses less digits than its factorization.

1142142123430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5132590 (or 5132573 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 28.

Adding to 1142142123430 its reverse (343212412411), we get a palindrome (1485354535841).

The spelling of 1142142123430 in words is "one trillion, one hundred forty-two billion, one hundred forty-two million, one hundred twenty-three thousand, four hundred thirty".