2121030152671 has 4 divisors (see below), whose sum is σ = 2126809526752. Its totient is φ = 2115250778592.

The previous prime is 2121030152623. The next prime is 2121030152677. The reversal of 2121030152671 is 1762510301212.

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

It is a cyclic number.

It is not a de Polignac number, because 2121030152671 - 2²⁵ = 2120996598239 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2121030152677) 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, 2889686490 + ... + 2889687223.

It is an arithmetic number, because the mean of its divisors is an integer number (531702381688).

Almost surely, 2^{2121030152671} is an apocalyptic number.

2121030152671 is a deficient number, since it is larger than the sum of its proper divisors (5779374081).

2121030152671 is an equidigital number, since it uses as much as digits as its factorization.

2121030152671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5779374080.

The product of its (nonzero) digits is 5040, while the sum is 31.

Adding to 2121030152671 its reverse (1762510301212), we get a palindrome (3883540453883).

The spelling of 2121030152671 in words is "two trillion, one hundred twenty-one billion, thirty million, one hundred fifty-two thousand, six hundred seventy-one".