100401420431 has 4 divisors (see below), whose sum is σ = 108124606632. Its totient is φ = 92678234232.

The previous prime is 100401420373. The next prime is 100401420439. The reversal of 100401420431 is 134024104001.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 134024104001 = 89 ⋅1505888809.

It is a cyclic number.

It is not a de Polignac number, because 100401420431 - 2⁶ = 100401420367 is a prime.

It is a super-2 number, since 2×100401420431² (a number of 23 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 (100401420439) 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, 3861593081 + ... + 3861593106.

It is an arithmetic number, because the mean of its divisors is an integer number (27031151658).

Almost surely, 2^100401420431 is an apocalyptic number.

100401420431 is a deficient number, since it is larger than the sum of its proper divisors (7723186201).

100401420431 is an equidigital number, since it uses as much as digits as its factorization.

100401420431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7723186200.

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 100401420431 its reverse (134024104001), we get a palindrome (234425524432).

The spelling of 100401420431 in words is "one hundred billion, four hundred one million, four hundred twenty thousand, four hundred thirty-one".