2119230981 has 24 divisors (see below), whose sum is σ = 3592968704. Its totient is φ = 1178258400.

The previous prime is 2119230973. The next prime is 2119231003. The reversal of 2119230981 is 1890329112.

It is not a de Polignac number, because 2119230981 - 2³ = 2119230973 is a prime.

It is a super-2 number, since 2×2119230981² = 8982279901660444722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2119230781) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 452245 + ... + 456906.

Almost surely, 2^2119230981 is an apocalyptic number.

2119230981 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2119230981 is a deficient number, since it is larger than the sum of its proper divisors (1473737723).

2119230981 is a wasteful number, since it uses less digits than its factorization.

2119230981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 909201 (or 909198 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 36.

The square root of 2119230981 is about 46035.1059627324. The cubic root of 2119230981 is about 1284.4763077707.

The spelling of 2119230981 in words is "two billion, one hundred nineteen million, two hundred thirty thousand, nine hundred eighty-one".