102445331421 has 8 divisors (see below), whose sum is σ = 136628556480. Its totient is φ = 68279496992.

The previous prime is 102445331419. The next prime is 102445331423. The reversal of 102445331421 is 124133544201.

It is an interprime number because it is at equal distance from previous prime (102445331419) and next prime (102445331423).

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

It is a cyclic number.

It is not a de Polignac number, because 102445331421 - 2¹ = 102445331419 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102445331423) 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, 4333905 + ... + 4357478.

It is an arithmetic number, because the mean of its divisors is an integer number (17078569560).

Almost surely, 2^102445331421 is an apocalyptic number.

It is an amenable number.

102445331421 is a deficient number, since it is larger than the sum of its proper divisors (34183225059).

102445331421 is an equidigital number, since it uses as much as digits as its factorization.

102445331421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8695315.

The product of its (nonzero) digits is 11520, while the sum is 30.

Adding to 102445331421 its reverse (124133544201), we get a palindrome (226578875622).

The spelling of 102445331421 in words is "one hundred two billion, four hundred forty-five million, three hundred thirty-one thousand, four hundred twenty-one".