100021001293 has 2 divisors, whose sum is σ = 100021001294. Its totient is φ = 100021001292.

The previous prime is 100021001281. The next prime is 100021001341. The reversal of 100021001293 is 392100120001.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 62253743049 + 37767258244 = 249507^2 + 194338^2 .

It is a cyclic number.

It is not a de Polignac number, because 100021001293 - 2⁵ = 100021001261 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 100021001293.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (100021001203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50010500646 + 50010500647.

It is an arithmetic number, because the mean of its divisors is an integer number (50010500647).

Almost surely, 2^100021001293 is an apocalyptic number.

It is an amenable number.

100021001293 is a deficient number, since it is larger than the sum of its proper divisors (1).

100021001293 is an equidigital number, since it uses as much as digits as its factorization.

100021001293 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108, while the sum is 19.

Adding to 100021001293 its reverse (392100120001), we get a palindrome (492121121294).

The spelling of 100021001293 in words is "one hundred billion, twenty-one million, one thousand, two hundred ninety-three".