102872020345 has 8 divisors (see below), whose sum is σ = 125185106880. Its totient is φ = 81138494640.

The previous prime is 102872020309. The next prime is 102872020379. The reversal of 102872020345 is 543020278201.

It is a happy number.

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

It is a de Polignac number, because none of the positive numbers 2^k-102872020345 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 102872020345.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 144889815 + ... + 144890524.

It is an arithmetic number, because the mean of its divisors is an integer number (15648138360).

Almost surely, 2^102872020345 is an apocalyptic number.

It is an amenable number.

102872020345 is a deficient number, since it is larger than the sum of its proper divisors (22313086535).

102872020345 is an equidigital number, since it uses as much as digits as its factorization.

102872020345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 289780415.

The product of its (nonzero) digits is 26880, while the sum is 34.

Adding to 102872020345 its reverse (543020278201), we get a palindrome (645892298546).

The spelling of 102872020345 in words is "one hundred two billion, eight hundred seventy-two million, twenty thousand, three hundred forty-five".