1990298030901 has 8 divisors (see below), whose sum is σ = 2725453159584. Its totient is φ = 1291004128080.

The previous prime is 1990298030893. The next prime is 1990298030909. The reversal of 1990298030901 is 1090308920991.

It is an interprime number because it is at equal distance from previous prime (1990298030893) and next prime (1990298030909).

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

It is not a de Polignac number, because 1990298030901 - 2³ = 1990298030893 is a prime.

It is a super-2 number, since 2×1990298030901² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1990298030909) 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, 8965306335 + ... + 8965306556.

It is an arithmetic number, because the mean of its divisors is an integer number (340681644948).

Almost surely, 2^{1990298030901} is an apocalyptic number.

It is an amenable number.

1990298030901 is a deficient number, since it is larger than the sum of its proper divisors (735155128683).

1990298030901 is a wasteful number, since it uses less digits than its factorization.

1990298030901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17930612931.

The product of its (nonzero) digits is 314928, while the sum is 51.

The spelling of 1990298030901 in words is "one trillion, nine hundred ninety billion, two hundred ninety-eight million, thirty thousand, nine hundred one".