102872470321 has 2 divisors, whose sum is σ = 102872470322. Its totient is φ = 102872470320.

The previous prime is 102872470303. The next prime is 102872470331. The reversal of 102872470321 is 123074278201.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 93003041296 + 9869429025 = 304964^2 + 99345^2 .

It is a cyclic number.

It is not a de Polignac number, because 102872470321 - 2²¹ = 102870373169 is a prime.

It is not a weakly prime, because it can be changed into another prime (102872470331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51436235160 + 51436235161.

It is an arithmetic number, because the mean of its divisors is an integer number (51436235161).

Almost surely, 2^102872470321 is an apocalyptic number.

It is an amenable number.

102872470321 is a deficient number, since it is larger than the sum of its proper divisors (1).

102872470321 is an equidigital number, since it uses as much as digits as its factorization.

102872470321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 37632, while the sum is 37.

The spelling of 102872470321 in words is "one hundred two billion, eight hundred seventy-two million, four hundred seventy thousand, three hundred twenty-one".