140204012123402 has 8 divisors (see below), whose sum is σ = 210315129905412. Its totient is φ = 70098968821600.

The previous prime is 140204012123381. The next prime is 140204012123437. The reversal of 140204012123402 is 204321210402041.

It can be written as a sum of positive squares in 2 ways, for example, as 130987086511681 + 9216925611721 = 11444959^2 + 3035939^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1518562349 + ... + 1518654672.

Almost surely, 2^{140204012123402} is an apocalyptic number.

140204012123402 is a deficient number, since it is larger than the sum of its proper divisors (70111117782010).

140204012123402 is a wasteful number, since it uses less digits than its factorization.

140204012123402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3037240104.

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

Adding to 140204012123402 its reverse (204321210402041), we get a palindrome (344525222525443).

The spelling of 140204012123402 in words is "one hundred forty trillion, two hundred four billion, twelve million, one hundred twenty-three thousand, four hundred two".