10102561421 has 8 divisors (see below), whose sum is σ = 10808608800. Its totient is φ = 9413947440.

The previous prime is 10102561411. The next prime is 10102561453. The reversal of 10102561421 is 12416520101.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10102561421 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 (10102561411) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4357151 + ... + 4359468.

It is an arithmetic number, because the mean of its divisors is an integer number (1351076100).

Almost surely, 2^10102561421 is an apocalyptic number.

It is an amenable number.

10102561421 is a deficient number, since it is larger than the sum of its proper divisors (706047379).

10102561421 is an equidigital number, since it uses as much as digits as its factorization.

10102561421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8716699.

The product of its (nonzero) digits is 480, while the sum is 23.

The spelling of 10102561421 in words is "ten billion, one hundred two million, five hundred sixty-one thousand, four hundred twenty-one".