203122420202987 has 8 divisors (see below), whose sum is σ = 204750004984272. Its totient is φ = 201496002572800.

The previous prime is 203122420202971. The next prime is 203122420202993. The reversal of 203122420202987 is 789202024221302.

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 203122420202987 - 2⁴ = 203122420202971 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (203122420202687) 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, 291438314 + ... + 292134447.

It is an arithmetic number, because the mean of its divisors is an integer number (25593750623034).

Almost surely, 2^{203122420202987} is an apocalyptic number.

203122420202987 is a deficient number, since it is larger than the sum of its proper divisors (1627584781285).

203122420202987 is a wasteful number, since it uses less digits than its factorization.

203122420202987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 583575549.

The product of its (nonzero) digits is 387072, while the sum is 44.

The spelling of 203122420202987 in words is "two hundred three trillion, one hundred twenty-two billion, four hundred twenty million, two hundred two thousand, nine hundred eighty-seven".