2113210999 has 2 divisors, whose sum is σ = 2113211000. Its totient is φ = 2113210998.

The previous prime is 2113210987. The next prime is 2113211011. The reversal of 2113210999 is 9990123112.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (2113210987) and next prime (2113211011).

It is a cyclic number.

It is not a de Polignac number, because 2113210999 - 2⁷ = 2113210871 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2113210949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1056605499 + 1056605500.

It is an arithmetic number, because the mean of its divisors is an integer number (1056605500).

Almost surely, 2^2113210999 is an apocalyptic number.

2113210999 is a deficient number, since it is larger than the sum of its proper divisors (1).

2113210999 is an equidigital number, since it uses as much as digits as its factorization.

2113210999 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8748, while the sum is 37.

The square root of 2113210999 is about 45969.6747758781. The cubic root of 2113210999 is about 1283.2589074208.

It can be divided in two parts, 21132 and 10999, that added together give a triangular number (32131 = T₂₅₃).

The spelling of 2113210999 in words is "two billion, one hundred thirteen million, two hundred ten thousand, nine hundred ninety-nine".