140220421121434 has 64 divisors (see below), whose sum is σ = 239677655040000. Its totient is φ = 61173971781120.

The previous prime is 140220421121419. The next prime is 140220421121509. The reversal of 140220421121434 is 434121124022041.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a junction number, because it is equal to n+sod(n) for n = 140220421121396 and 140220421121405.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7611639 + ... + 18395050.

It is an arithmetic number, because the mean of its divisors is an integer number (3744963360000).

Almost surely, 2^{140220421121434} is an apocalyptic number.

140220421121434 is a deficient number, since it is larger than the sum of its proper divisors (99457233918566).

140220421121434 is a wasteful number, since it uses less digits than its factorization.

140220421121434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26006963.

The product of its (nonzero) digits is 12288, while the sum is 31.

Adding to 140220421121434 its reverse (434121124022041), we get a palindrome (574341545143475).

The spelling of 140220421121434 in words is "one hundred forty trillion, two hundred twenty billion, four hundred twenty-one million, one hundred twenty-one thousand, four hundred thirty-four".