102203955851 has 8 divisors (see below), whose sum is σ = 110855367504. Its totient is φ = 93845812480.

The previous prime is 102203955829. The next prime is 102203955863. The reversal of 102203955851 is 158559302201.

It is a happy number.

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 102203955851 - 2¹⁸ = 102203693707 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 102203955799 and 102203955808.

It is not an unprimeable number, because it can be changed into a prime (102203955871) 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, 73316345 + ... + 73317738.

It is an arithmetic number, because the mean of its divisors is an integer number (13856920938).

Almost surely, 2^102203955851 is an apocalyptic number.

102203955851 is a deficient number, since it is larger than the sum of its proper divisors (8651411653).

102203955851 is a wasteful number, since it uses less digits than its factorization.

102203955851 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146634141.

The product of its (nonzero) digits is 108000, while the sum is 41.

The spelling of 102203955851 in words is "one hundred two billion, two hundred three million, nine hundred fifty-five thousand, eight hundred fifty-one".