140122123400029 has 4 divisors (see below), whose sum is σ = 143909207816284. Its totient is φ = 136335038983776.

The previous prime is 140122123399997. The next prime is 140122123400053. The reversal of 140122123400029 is 920004321221041.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 135183106087929 + 4939017312100 = 11626827^2 + 2222390^2 .

It is a cyclic number.

It is not a de Polignac number, because 140122123400029 - 2⁵ = 140122123399997 is a prime.

It is a super-2 number, since 2×140122123400029² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140122123400089) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1893542208072 + ... + 1893542208145.

It is an arithmetic number, because the mean of its divisors is an integer number (35977301954071).

Almost surely, 2^{140122123400029} is an apocalyptic number.

It is an amenable number.

140122123400029 is a deficient number, since it is larger than the sum of its proper divisors (3787084416255).

140122123400029 is an equidigital number, since it uses as much as digits as its factorization.

140122123400029 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3787084416254.

The product of its (nonzero) digits is 6912, while the sum is 31.

The spelling of 140122123400029 in words is "one hundred forty trillion, one hundred twenty-two billion, one hundred twenty-three million, four hundred thousand, twenty-nine".