40330121002 has 4 divisors (see below), whose sum is σ = 60495181506. Its totient is φ = 20165060500.

The previous prime is 40330120951. The next prime is 40330121017. The reversal of 40330121002 is 20012103304.

It is a happy number.

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

It can be written as a sum of positive squares in only one way, i.e., 40187819961 + 142301041 = 200469^2 + 11929^2 .

It is a super-2 number, since 2×40330121002² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10082530249 + ... + 10082530252.

Almost surely, 2^40330121002 is an apocalyptic number.

40330121002 is a deficient number, since it is larger than the sum of its proper divisors (20165060504).

40330121002 is a wasteful number, since it uses less digits than its factorization.

40330121002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20165060503.

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 40330121002 its reverse (20012103304), we get a palindrome (60342224306).

The spelling of 40330121002 in words is "forty billion, three hundred thirty million, one hundred twenty-one thousand, two".