1980218023 has 8 divisors (see below), whose sum is σ = 2263408160. Its totient is φ = 1697103360.

The previous prime is 1980217997. The next prime is 1980218027. The reversal of 1980218023 is 3208120891.

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 1980218023 - 2¹³ = 1980209831 is a prime.

It is a super-2 number, since 2×1980218023² = 7842526837228057058, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1980218023.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1980218027) 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, 58543 + ... + 85951.

It is an arithmetic number, because the mean of its divisors is an integer number (282926020).

Almost surely, 2^1980218023 is an apocalyptic number.

1980218023 is a deficient number, since it is larger than the sum of its proper divisors (283190137).

1980218023 is a wasteful number, since it uses less digits than its factorization.

1980218023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37737.

The product of its (nonzero) digits is 6912, while the sum is 34.

The square root of 1980218023 is about 44499.6407064147. The cubic root of 1980218023 is about 1255.7533236928.

The spelling of 1980218023 in words is "one billion, nine hundred eighty million, two hundred eighteen thousand, twenty-three".