40023120111 has 32 divisors (see below), whose sum is σ = 63495290880. Its totient is φ = 22172941824.

The previous prime is 40023120097. The next prime is 40023120143. The reversal of 40023120111 is 11102132004.

It is not a de Polignac number, because 40023120111 - 2²¹ = 40021022959 is a prime.

It is a super-3 number, since 3×40023120111³ (a number of 33 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40023120311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1297071 + ... + 1327568.

It is an arithmetic number, because the mean of its divisors is an integer number (1984227840).

Almost surely, 2^40023120111 is an apocalyptic number.

40023120111 is a deficient number, since it is larger than the sum of its proper divisors (23472170769).

40023120111 is a wasteful number, since it uses less digits than its factorization.

40023120111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2624695.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 40023120111 its reverse (11102132004), we get a palindrome (51125252115).

The spelling of 40023120111 in words is "forty billion, twenty-three million, one hundred twenty thousand, one hundred eleven".