2231245203421 has 4 divisors (see below), whose sum is σ = 2402879449852. Its totient is φ = 2059610956992.

The previous prime is 2231245203409. The next prime is 2231245203431. The reversal of 2231245203421 is 1243025421322.

It is a happy number.

2231245203421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in 2 ways, for example, as 661962859321 + 1569282344100 = 813611^2 + 1252710^2 .

It is a cyclic number.

It is not a de Polignac number, because 2231245203421 - 2¹⁵ = 2231245170653 is a prime.

It is a super-3 number, since 3×2231245203421³ (a number of 38 digits) contains 333 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 (2231245203431) 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, 85817123196 + ... + 85817123221.

It is an arithmetic number, because the mean of its divisors is an integer number (600719862463).

Almost surely, 2^{2231245203421} is an apocalyptic number.

It is an amenable number.

2231245203421 is a deficient number, since it is larger than the sum of its proper divisors (171634246431).

2231245203421 is a wasteful number, since it uses less digits than its factorization.

2231245203421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171634246430.

The product of its (nonzero) digits is 23040, while the sum is 31.

The spelling of 2231245203421 in words is "two trillion, two hundred thirty-one billion, two hundred forty-five million, two hundred three thousand, four hundred twenty-one".