40223121342 has 32 divisors (see below), whose sum is σ = 80947774464. Its totient is φ = 13324370400.

The previous prime is 40223121329. The next prime is 40223121383. The reversal of 40223121342 is 24312132204.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 614367 + ... + 676677.

It is an arithmetic number, because the mean of its divisors is an integer number (2529617952).

Almost surely, 2^40223121342 is an apocalyptic number.

40223121342 is an abundant number, since it is smaller than the sum of its proper divisors (40724653122).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40223121342 is a wasteful number, since it uses less digits than its factorization.

40223121342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62984.

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 40223121342 its reverse (24312132204), we get a palindrome (64535253546).

The spelling of 40223121342 in words is "forty billion, two hundred twenty-three million, one hundred twenty-one thousand, three hundred forty-two".