40123421403334 has 16 divisors (see below), whose sum is σ = 60805868331600. Its totient is φ = 19854800469504.

The previous prime is 40123421403293. The next prime is 40123421403343. The reversal of 40123421403334 is 43330412432104.

It is a self number, because there is not a number n which added to its sum of digits gives 40123421403334.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 74726877 + ... + 75261895.

It is an arithmetic number, because the mean of its divisors is an integer number (3800366770725).

Almost surely, 2^{40123421403334} is an apocalyptic number.

40123421403334 is a deficient number, since it is larger than the sum of its proper divisors (20682446928266).

40123421403334 is a wasteful number, since it uses less digits than its factorization.

40123421403334 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 921687.

The product of its (nonzero) digits is 82944, while the sum is 34.

Adding to 40123421403334 its reverse (43330412432104), we get a palindrome (83453833835438).

The spelling of 40123421403334 in words is "forty trillion, one hundred twenty-three billion, four hundred twenty-one million, four hundred three thousand, three hundred thirty-four".