40213243031 has 8 divisors (see below), whose sum is σ = 43548508080. Its totient is φ = 36912540672.

The previous prime is 40213243009. The next prime is 40213243061. The reversal of 40213243031 is 13034231204.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40213243031 is a prime.

It is a super-2 number, since 2×40213243031² (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 = 40213242988 and 40213243006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40213243001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8638250 + ... + 8642903.

It is an arithmetic number, because the mean of its divisors is an integer number (5443563510).

Almost surely, 2^40213243031 is an apocalyptic number.

40213243031 is a deficient number, since it is larger than the sum of its proper divisors (3335265049).

40213243031 is a wasteful number, since it uses less digits than its factorization.

40213243031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17281345.

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 40213243031 its reverse (13034231204), we get a palindrome (53247474235).

The spelling of 40213243031 in words is "forty billion, two hundred thirteen million, two hundred forty-three thousand, thirty-one".