2114123021 has 4 divisors (see below), whose sum is σ = 2117919132. Its totient is φ = 2110326912.

The previous prime is 2114123003. The next prime is 2114123023. The reversal of 2114123021 is 1203214112.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 382398025 + 1731724996 = 19555^2 + 41614^2 .

It is a cyclic number.

It is not a de Polignac number, because 2114123021 - 2⁶ = 2114122957 is a prime.

It is a super-2 number, since 2×2114123021² = 8939032295844332882, 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 (2114123023) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1897220 + ... + 1898333.

It is an arithmetic number, because the mean of its divisors is an integer number (529479783).

Almost surely, 2^2114123021 is an apocalyptic number.

It is an amenable number.

2114123021 is a deficient number, since it is larger than the sum of its proper divisors (3796111).

2114123021 is an equidigital number, since it uses as much as digits as its factorization.

2114123021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3796110.

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 2114123021 is about 45979.5935279989. The cubic root of 2114123021 is about 1283.4434909808.

Adding to 2114123021 its reverse (1203214112), we get a palindrome (3317337133).

The spelling of 2114123021 in words is "two billion, one hundred fourteen million, one hundred twenty-three thousand, twenty-one".