73201266431 has 2 divisors, whose sum is σ = 73201266432. Its totient is φ = 73201266430.

The previous prime is 73201266403. The next prime is 73201266443. The reversal of 73201266431 is 13466210237.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 73201266431 - 2¹⁴ = 73201250047 is a prime.

It is a super-2 number, since 2×73201266431² (a number of 23 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 73201266391 and 73201266400.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (73201266461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36600633215 + 36600633216.

It is an arithmetic number, because the mean of its divisors is an integer number (36600633216).

Almost surely, 2^73201266431 is an apocalyptic number.

73201266431 is a deficient number, since it is larger than the sum of its proper divisors (1).

73201266431 is an equidigital number, since it uses as much as digits as its factorization.

73201266431 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36288, while the sum is 35.

Adding to 73201266431 its reverse (13466210237), we get a palindrome (86667476668).

The spelling of 73201266431 in words is "seventy-three billion, two hundred one million, two hundred sixty-six thousand, four hundred thirty-one".