142321011504402 has 32 divisors (see below), whose sum is σ = 284694441707520. Its totient is φ = 47431601309840.

The previous prime is 142321011504341. The next prime is 142321011504439. The reversal of 142321011504402 is 204405110123241.

It is a super-2 number, since 2×142321011504402² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 142321011504402.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1291623403 + ... + 1291733585.

It is an arithmetic number, because the mean of its divisors is an integer number (8896701303360).

Almost surely, 2^{142321011504402} is an apocalyptic number.

142321011504402 is an abundant number, since it is smaller than the sum of its proper divisors (142373430203118).

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

142321011504402 is a wasteful number, since it uses less digits than its factorization.

142321011504402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147878.

The product of its (nonzero) digits is 7680, while the sum is 30.

Adding to 142321011504402 its reverse (204405110123241), we get a palindrome (346726121627643).

The spelling of 142321011504402 in words is "one hundred forty-two trillion, three hundred twenty-one billion, eleven million, five hundred four thousand, four hundred two".