40203201123 has 16 divisors (see below), whose sum is σ = 60138557440. Its totient is φ = 26541917352.

The previous prime is 40203201089. The next prime is 40203201139. The reversal of 40203201123 is 32110230204.

It is not a de Polignac number, because 40203201123 - 2¹⁴ = 40203184739 is a prime.

It is a super-2 number, since 2×40203201123² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 40203201096 and 40203201105.

It is not an unprimeable number, because it can be changed into a prime (40203201223) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7225411 + ... + 7230972.

It is an arithmetic number, because the mean of its divisors is an integer number (3758659840).

Almost surely, 2^40203201123 is an apocalyptic number.

40203201123 is a deficient number, since it is larger than the sum of its proper divisors (19935356317).

40203201123 is a wasteful number, since it uses less digits than its factorization.

40203201123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14456495 (or 14456489 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 40203201123 its reverse (32110230204), we get a palindrome (72313431327).

The spelling of 40203201123 in words is "forty billion, two hundred three million, two hundred one thousand, one hundred twenty-three".