100420342512013 has 4 divisors (see below), whose sum is σ = 100420439986300. Its totient is φ = 100420245037728.

The previous prime is 100420342511971. The next prime is 100420342512031. The reversal of 100420342512013 is 310215243024001.

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 70097115249604 + 30323227262409 = 8372402^2 + 5506653^2 .

It is a cyclic number.

It is not a de Polignac number, because 100420342512013 - 2³³ = 100411752577421 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100420342512053) 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, 47175120 + ... + 49257817.

It is an arithmetic number, because the mean of its divisors is an integer number (25105109996575).

Almost surely, 2^{100420342512013} is an apocalyptic number.

It is an amenable number.

100420342512013 is a deficient number, since it is larger than the sum of its proper divisors (97474287).

100420342512013 is an equidigital number, since it uses as much as digits as its factorization.

100420342512013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97474286.

The product of its (nonzero) digits is 5760, while the sum is 28.

Adding to 100420342512013 its reverse (310215243024001), we get a palindrome (410635585536014).

The spelling of 100420342512013 in words is "one hundred trillion, four hundred twenty billion, three hundred forty-two million, five hundred twelve thousand, thirteen".