40023115501 has 2 divisors, whose sum is σ = 40023115502. Its totient is φ = 40023115500.

The previous prime is 40023115469. The next prime is 40023115523. The reversal of 40023115501 is 10551132004.

It is a happy number.

It is an a-pointer prime, because the next prime (40023115523) can be obtained adding 40023115501 to its sum of digits (22).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 35749355625 + 4273759876 = 189075^2 + 65374^2 .

It is a cyclic number.

It is not a de Polignac number, because 40023115501 - 2⁵ = 40023115469 is a prime.

It is a super-3 number, since 3×40023115501³ (a number of 33 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40023115541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20011557750 + 20011557751.

It is an arithmetic number, because the mean of its divisors is an integer number (20011557751).

Almost surely, 2^40023115501 is an apocalyptic number.

It is an amenable number.

40023115501 is a deficient number, since it is larger than the sum of its proper divisors (1).

40023115501 is an equidigital number, since it uses as much as digits as its factorization.

40023115501 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 600, while the sum is 22.

Adding to 40023115501 its reverse (10551132004), we get a palindrome (50574247505).

The spelling of 40023115501 in words is "forty billion, twenty-three million, one hundred fifteen thousand, five hundred one".