3121421027 has 2 divisors, whose sum is σ = 3121421028. Its totient is φ = 3121421026.

The previous prime is 3121420997. The next prime is 3121421063. The reversal of 3121421027 is 7201241213.

3121421027 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 3121421027 - 2²⁸ = 2852985571 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3121420993 and 3121421011.

It is not a weakly prime, because it can be changed into another prime (3121421087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1560710513 + 1560710514.

It is an arithmetic number, because the mean of its divisors is an integer number (1560710514).

Almost surely, 2^3121421027 is an apocalyptic number.

3121421027 is a deficient number, since it is larger than the sum of its proper divisors (1).

3121421027 is an equidigital number, since it uses as much as digits as its factorization.

3121421027 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 672, while the sum is 23.

The square root of 3121421027 is about 55869.6789591635. The cubic root of 3121421027 is about 1461.4505236045.

The spelling of 3121421027 in words is "three billion, one hundred twenty-one million, four hundred twenty-one thousand, twenty-seven".