72923133001 has 2 divisors, whose sum is σ = 72923133002. Its totient is φ = 72923133000.

The previous prime is 72923132941. The next prime is 72923133011. The reversal of 72923133001 is 10033132927.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 64363182601 + 8559950400 = 253699^2 + 92520^2 .

It is an emirp because it is prime and its reverse (10033132927) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 72923133001 - 2⁹ = 72923132489 is a prime.

It is not a weakly prime, because it can be changed into another prime (72923133011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36461566500 + 36461566501.

It is an arithmetic number, because the mean of its divisors is an integer number (36461566501).

Almost surely, 2^72923133001 is an apocalyptic number.

It is an amenable number.

72923133001 is a deficient number, since it is larger than the sum of its proper divisors (1).

72923133001 is an equidigital number, since it uses as much as digits as its factorization.

72923133001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6804, while the sum is 31.

Adding to 72923133001 its reverse (10033132927), we get a palindrome (82956265928).

The spelling of 72923133001 in words is "seventy-two billion, nine hundred twenty-three million, one hundred thirty-three thousand, one".