40202123 has 8 divisors (see below), whose sum is σ = 43679328. Its totient is φ = 36779904.

The previous prime is 40202087. The next prime is 40202153. The reversal of 40202123 is 32120204.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 40202123 - 2¹⁰ = 40201099 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 40202098 and 40202107.

It is not an unprimeable number, because it can be changed into a prime (40202153) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12215 + ... + 15152.

It is an arithmetic number, because the mean of its divisors is an integer number (5459916).

Almost surely, 2^40202123 is an apocalyptic number.

40202123 is a deficient number, since it is larger than the sum of its proper divisors (3477205).

40202123 is a wasteful number, since it uses less digits than its factorization.

40202123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27493.

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 40202123 is about 6340.5144113077. The cubic root of 40202123 is about 342.5702642352.

Adding to 40202123 its reverse (32120204), we get a palindrome (72322327).

The spelling of 40202123 in words is "forty million, two hundred two thousand, one hundred twenty-three".