140421230021402 has 32 divisors (see below), whose sum is σ = 241953220152000. Its totient is φ = 60448639478400.

The previous prime is 140421230021357. The next prime is 140421230021411. The reversal of 140421230021402 is 204120032124041.

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, 53815049 + ... + 56364012.

It is an arithmetic number, because the mean of its divisors is an integer number (7561038129750).

Almost surely, 2^{140421230021402} is an apocalyptic number.

140421230021402 is a deficient number, since it is larger than the sum of its proper divisors (101531990130598).

140421230021402 is a wasteful number, since it uses less digits than its factorization.

140421230021402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110182142.

The product of its (nonzero) digits is 3072, while the sum is 26.

Adding to 140421230021402 its reverse (204120032124041), we get a palindrome (344541262145443).

The spelling of 140421230021402 in words is "one hundred forty trillion, four hundred twenty-one billion, two hundred thirty million, twenty-one thousand, four hundred two".