2331220061243 has 4 divisors (see below), whose sum is σ = 2453915853960. Its totient is φ = 2208524268528.

The previous prime is 2331220061117. The next prime is 2331220061249. The reversal of 2331220061243 is 3421600221332.

It is a happy number.

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 2331220061243 - 2⁸ = 2331220060987 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2331220061249) 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, 61347896330 + ... + 61347896367.

It is an arithmetic number, because the mean of its divisors is an integer number (613478963490).

Almost surely, 2^{2331220061243} is an apocalyptic number.

2331220061243 is a deficient number, since it is larger than the sum of its proper divisors (122695792717).

2331220061243 is a wasteful number, since it uses less digits than its factorization.

2331220061243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122695792716.

The product of its (nonzero) digits is 10368, while the sum is 29.

Adding to 2331220061243 its reverse (3421600221332), we get a palindrome (5752820282575).

The spelling of 2331220061243 in words is "two trillion, three hundred thirty-one billion, two hundred twenty million, sixty-one thousand, two hundred forty-three".