2700031021 has 2 divisors, whose sum is σ = 2700031022. Its totient is φ = 2700031020.

The previous prime is 2700030917. The next prime is 2700031027. The reversal of 2700031021 is 1201300072.

It is a happy number.

2700031021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2348468521 + 351562500 = 48461^2 + 18750^2 .

It is a cyclic number.

It is not a de Polignac number, because 2700031021 - 2¹⁵ = 2699998253 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2700030986 and 2700031004.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2700031027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1350015510 + 1350015511.

It is an arithmetic number, because the mean of its divisors is an integer number (1350015511).

Almost surely, 2^2700031021 is an apocalyptic number.

It is an amenable number.

2700031021 is a deficient number, since it is larger than the sum of its proper divisors (1).

2700031021 is an equidigital number, since it uses as much as digits as its factorization.

2700031021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 84, while the sum is 16.

The square root of 2700031021 is about 51961.8227259206. The cubic root of 2700031021 is about 1392.4819829052.

Adding to 2700031021 its reverse (1201300072), we get a palindrome (3901331093).

The spelling of 2700031021 in words is "two billion, seven hundred million, thirty-one thousand, twenty-one".