4721135521373 has 2 divisors, whose sum is σ = 4721135521374. Its totient is φ = 4721135521372.

The previous prime is 4721135521351. The next prime is 4721135521379. The reversal of 4721135521373 is 3731255311274.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3898800313444 + 822335207929 = 1974538^2 + 906827^2 .

It is a cyclic number.

It is not a de Polignac number, because 4721135521373 - 2⁸ = 4721135521117 is a prime.

It is a super-2 number, since 2×4721135521373² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4721135521379) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2360567760686 + 2360567760687.

It is an arithmetic number, because the mean of its divisors is an integer number (2360567760687).

Almost surely, 2^{4721135521373} is an apocalyptic number.

It is an amenable number.

4721135521373 is a deficient number, since it is larger than the sum of its proper divisors (1).

4721135521373 is an equidigital number, since it uses as much as digits as its factorization.

4721135521373 is an evil number, because the sum of its binary digits is even.

The product of its digits is 529200, while the sum is 44.

The spelling of 4721135521373 in words is "four trillion, seven hundred twenty-one billion, one hundred thirty-five million, five hundred twenty-one thousand, three hundred seventy-three".