2311342002421 has 16 divisors (see below), whose sum is σ = 2369618722800. Its totient is φ = 2253156825600.

The previous prime is 2311342002407. The next prime is 2311342002449. The reversal of 2311342002421 is 1242002431132.

It can be written as a sum of positive squares in 8 ways, for example, as 891636390225 + 1419705612196 = 944265^2 + 1191514^2 .

It is a cyclic number.

It is not a de Polignac number, because 2311342002421 - 2²⁵ = 2311308447989 is a prime.

It is a super-2 number, since 2×2311342002421² (a number of 26 digits) 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 (2311342002521) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 435360315 + ... + 435365623.

It is an arithmetic number, because the mean of its divisors is an integer number (148101170175).

Almost surely, 2^{2311342002421} is an apocalyptic number.

It is an amenable number.

2311342002421 is a deficient number, since it is larger than the sum of its proper divisors (58276720379).

2311342002421 is a wasteful number, since it uses less digits than its factorization.

2311342002421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11880.

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 2311342002421 its reverse (1242002431132), we get a palindrome (3553344433553).

The spelling of 2311342002421 in words is "two trillion, three hundred eleven billion, three hundred forty-two million, two thousand, four hundred twenty-one".