99963102421 has 32 divisors (see below), whose sum is σ = 124025070848. Its totient is φ = 78454863360.

The previous prime is 99963102419. The next prime is 99963102431. The reversal of 99963102421 is 12420136999.

It is a cyclic number.

It is not a de Polignac number, because 99963102421 - 2¹ = 99963102419 is a prime.

It is a super-2 number, since 2×99963102421² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99963102431) 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 in 31 ways as a sum of consecutive naturals, for example, 8018425 + ... + 8030881.

It is an arithmetic number, because the mean of its divisors is an integer number (3875783464).

Almost surely, 2^99963102421 is an apocalyptic number.

99963102421 is a gapful number since it is divisible by the number (91) formed by its first and last digit.

99963102421 is the 182541-st hex number.

It is an amenable number.

99963102421 is a deficient number, since it is larger than the sum of its proper divisors (24061968427).

99963102421 is a wasteful number, since it uses less digits than its factorization.

99963102421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13181.

The product of its (nonzero) digits is 209952, while the sum is 46.

The spelling of 99963102421 in words is "ninety-nine billion, nine hundred sixty-three million, one hundred two thousand, four hundred twenty-one".