2121343103011 has 4 divisors (see below), whose sum is σ = 2314192476024. Its totient is φ = 1928493730000.

The previous prime is 2121343102999. The next prime is 2121343103029. The reversal of 2121343103011 is 1103013431212.

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 2121343103011 - 2⁵ = 2121343102979 is a prime.

It is a super-2 number, since 2×2121343103011² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2121343103071) 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, 96424686490 + ... + 96424686511.

It is an arithmetic number, because the mean of its divisors is an integer number (578548119006).

Almost surely, 2^{2121343103011} is an apocalyptic number.

2121343103011 is a deficient number, since it is larger than the sum of its proper divisors (192849373013).

2121343103011 is a wasteful number, since it uses less digits than its factorization.

2121343103011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 192849373012.

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 2121343103011 its reverse (1103013431212), we get a palindrome (3224356534223).

The spelling of 2121343103011 in words is "two trillion, one hundred twenty-one billion, three hundred forty-three million, one hundred three thousand, eleven".