20040121033810 has 32 divisors (see below), whose sum is σ = 36158973122304. Its totient is φ = 7996770600000.

The previous prime is 20040121033747. The next prime is 20040121033811. The reversal of 20040121033810 is 1833012104002.

It is a happy number.

It is a super-2 number, since 2×20040121033810² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20040121033811) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 233658435 + ... + 233744185.

It is an arithmetic number, because the mean of its divisors is an integer number (1129967910072).

Almost surely, 2^{20040121033810} is an apocalyptic number.

20040121033810 is a deficient number, since it is larger than the sum of its proper divisors (16118852088494).

20040121033810 is a wasteful number, since it uses less digits than its factorization.

20040121033810 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141690.

The product of its (nonzero) digits is 1152, while the sum is 25.

Adding to 20040121033810 its reverse (1833012104002), we get a palindrome (21873133137812).

The spelling of 20040121033810 in words is "twenty trillion, forty billion, one hundred twenty-one million, thirty-three thousand, eight hundred ten".