40012045102 has 4 divisors (see below), whose sum is σ = 60018067656. Its totient is φ = 20006022550.

The previous prime is 40012045069. The next prime is 40012045103. The reversal of 40012045102 is 20154021004.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 40012045102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40012045103) 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 as a sum of consecutive naturals, namely, 10003011274 + ... + 10003011277.

It is an arithmetic number, because the mean of its divisors is an integer number (15004516914).

Almost surely, 2^40012045102 is an apocalyptic number.

40012045102 is a deficient number, since it is larger than the sum of its proper divisors (20006022554).

40012045102 is a wasteful number, since it uses less digits than its factorization.

40012045102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20006022553.

The product of its (nonzero) digits is 320, while the sum is 19.

Adding to 40012045102 its reverse (20154021004), we get a palindrome (60166066106).

The spelling of 40012045102 in words is "forty billion, twelve million, forty-five thousand, one hundred two".