1500420543373 has 2 divisors, whose sum is σ = 1500420543374. Its totient is φ = 1500420543372.

The previous prime is 1500420543343. The next prime is 1500420543379. The reversal of 1500420543373 is 3733450240051.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1165488658084 + 334931885289 = 1079578^2 + 578733^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1500420543373 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1500420543379) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 750210271686 + 750210271687.

It is an arithmetic number, because the mean of its divisors is an integer number (750210271687).

Almost surely, 2^{1500420543373} is an apocalyptic number.

It is an amenable number.

1500420543373 is a deficient number, since it is larger than the sum of its proper divisors (1).

1500420543373 is an equidigital number, since it uses as much as digits as its factorization.

1500420543373 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 151200, while the sum is 37.

The spelling of 1500420543373 in words is "one trillion, five hundred billion, four hundred twenty million, five hundred forty-three thousand, three hundred seventy-three".