100412021461 has 2 divisors, whose sum is σ = 100412021462. Its totient is φ = 100412021460.

The previous prime is 100412021399. The next prime is 100412021467. The reversal of 100412021461 is 164120214001.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 70666120561 + 29745900900 = 265831^2 + 172470^2 .

It is a cyclic number.

It is not a de Polignac number, because 100412021461 - 2¹³ = 100412013269 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (100412021467) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50206010730 + 50206010731.

It is an arithmetic number, because the mean of its divisors is an integer number (50206010731).

Almost surely, 2^100412021461 is an apocalyptic number.

It is an amenable number.

100412021461 is a deficient number, since it is larger than the sum of its proper divisors (1).

100412021461 is an equidigital number, since it uses as much as digits as its factorization.

100412021461 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 384, while the sum is 22.

Adding to 100412021461 its reverse (164120214001), we get a palindrome (264532235462).

The spelling of 100412021461 in words is "one hundred billion, four hundred twelve million, twenty-one thousand, four hundred sixty-one".