2040221331523 has 2 divisors, whose sum is σ = 2040221331524. Its totient is φ = 2040221331522.

The previous prime is 2040221331493. The next prime is 2040221331569. The reversal of 2040221331523 is 3251331220402.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2040221331523 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2040221331491 and 2040221331500.

It is not a weakly prime, because it can be changed into another prime (2040221331023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1020110665761 + 1020110665762.

It is an arithmetic number, because the mean of its divisors is an integer number (1020110665762).

Almost surely, 2^{2040221331523} is an apocalyptic number.

2040221331523 is a deficient number, since it is larger than the sum of its proper divisors (1).

2040221331523 is an equidigital number, since it uses as much as digits as its factorization.

2040221331523 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8640, while the sum is 28.

Adding to 2040221331523 its reverse (3251331220402), we get a palindrome (5291552551925).

The spelling of 2040221331523 in words is "two trillion, forty billion, two hundred twenty-one million, three hundred thirty-one thousand, five hundred twenty-three".