140420432031401 has 4 divisors (see below), whose sum is σ = 140420586285252. Its totient is φ = 140420277777552.

The previous prime is 140420432031391. The next prime is 140420432031427. The reversal of 140420432031401 is 104130234024041.

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 99954485180176 + 40465946851225 = 9997724^2 + 6361285^2 .

It is a cyclic number.

It is not a de Polignac number, because 140420432031401 - 2⁴² = 136022385520297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (140420432061401) 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, 75753290 + ... + 77584803.

It is an arithmetic number, because the mean of its divisors is an integer number (35105146571313).

Almost surely, 2^{140420432031401} is an apocalyptic number.

It is an amenable number.

140420432031401 is a deficient number, since it is larger than the sum of its proper divisors (154253851).

140420432031401 is an equidigital number, since it uses as much as digits as its factorization.

140420432031401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154253850.

The product of its (nonzero) digits is 9216, while the sum is 29.

Adding to 140420432031401 its reverse (104130234024041), we get a palindrome (244550666055442).

The spelling of 140420432031401 in words is "one hundred forty trillion, four hundred twenty billion, four hundred thirty-two million, thirty-one thousand, four hundred one".