40123465101 has 10 divisors (see below), whose sum is σ = 59937522062. Its totient is φ = 26748976680.

The previous prime is 40123465097. The next prime is 40123465271. The reversal of 40123465101 is 10156432104.

It is a happy number.

40123465101 is a `hidden beast` number, since 4 + 0 + 1 + 2 + 3 + 4 + 651 + 0 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 28595148201 + 11528316900 = 169101^2 + 107370^2 .

It is not a de Polignac number, because 40123465101 - 2² = 40123465097 is a prime.

It is a super-2 number, since 2×40123465101² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40123465801) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 247675630 + ... + 247675791.

Almost surely, 2^40123465101 is an apocalyptic number.

It is an amenable number.

40123465101 is a deficient number, since it is larger than the sum of its proper divisors (19814056961).

40123465101 is an equidigital number, since it uses as much as digits as its factorization.

40123465101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 495351433 (or 495351424 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

Adding to 40123465101 its reverse (10156432104), we get a palindrome (50279897205).

The spelling of 40123465101 in words is "forty billion, one hundred twenty-three million, four hundred sixty-five thousand, one hundred one".