5402323232021 has 2 divisors, whose sum is σ = 5402323232022. Its totient is φ = 5402323232020.

The previous prime is 5402323232003. The next prime is 5402323232023. The reversal of 5402323232021 is 1202323232045.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3976474692100 + 1425848539921 = 1994110^2 + 1194089^2 .

It is a cyclic number.

It is not a de Polignac number, because 5402323232021 - 2¹⁸ = 5402322969877 is a prime.

Together with 5402323232023, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5402323232023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2701161616010 + 2701161616011.

It is an arithmetic number, because the mean of its divisors is an integer number (2701161616011).

Almost surely, 2^{5402323232021} is an apocalyptic number.

It is an amenable number.

5402323232021 is a deficient number, since it is larger than the sum of its proper divisors (1).

5402323232021 is an equidigital number, since it uses as much as digits as its factorization.

5402323232021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17280, while the sum is 29.

Adding to 5402323232021 its reverse (1202323232045), we get a palindrome (6604646464066).

The spelling of 5402323232021 in words is "five trillion, four hundred two billion, three hundred twenty-three million, two hundred thirty-two thousand, twenty-one".