40121043234 has 32 divisors (see below), whose sum is σ = 80421002496. Its totient is φ = 13343890560.

The previous prime is 40121043217. The next prime is 40121043269. The reversal of 40121043234 is 43234012104.

It is a super-2 number, since 2×40121043234² (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11774359 + ... + 11777765.

It is an arithmetic number, because the mean of its divisors is an integer number (2513156328).

Almost surely, 2^40121043234 is an apocalyptic number.

40121043234 is an abundant number, since it is smaller than the sum of its proper divisors (40299959262).

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

40121043234 is a wasteful number, since it uses less digits than its factorization.

40121043234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7210.

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

Adding to 40121043234 its reverse (43234012104), we get a palindrome (83355055338).

It can be divided in two parts, 401210 and 43234, that added together give a palindrome (444444).

The spelling of 40121043234 in words is "forty billion, one hundred twenty-one million, forty-three thousand, two hundred thirty-four".