102031245421 has 8 divisors (see below), whose sum is σ = 116615145920. Its totient is φ = 87449347008.

The previous prime is 102031245419. The next prime is 102031245499. The reversal of 102031245421 is 124542130201.

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 102031245421 - 2¹ = 102031245419 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102031245821) 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, 389676 + ... + 596581.

It is an arithmetic number, because the mean of its divisors is an integer number (14576893240).

Almost surely, 2^102031245421 is an apocalyptic number.

It is an amenable number.

102031245421 is a deficient number, since it is larger than the sum of its proper divisors (14583900499).

102031245421 is an equidigital number, since it uses as much as digits as its factorization.

102031245421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1001043.

The product of its (nonzero) digits is 1920, while the sum is 25.

Adding to 102031245421 its reverse (124542130201), we get a palindrome (226573375622).

The spelling of 102031245421 in words is "one hundred two billion, thirty-one million, two hundred forty-five thousand, four hundred twenty-one".