429141681121 has 4 divisors (see below), whose sum is σ = 429143246532. Its totient is φ = 429140115712.

The previous prime is 429141681109. The next prime is 429141681127. The reversal of 429141681121 is 121186141924.

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 2 ways, for example, as 379874995600 + 49266685521 = 616340^2 + 221961^2 .

It is a cyclic number.

It is not a de Polignac number, because 429141681121 - 2¹³ = 429141672929 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (429141681127) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 251176 + ... + 959881.

It is an arithmetic number, because the mean of its divisors is an integer number (107285811633).

Almost surely, 2^429141681121 is an apocalyptic number.

It is an amenable number.

429141681121 is a deficient number, since it is larger than the sum of its proper divisors (1565411).

429141681121 is a wasteful number, since it uses less digits than its factorization.

429141681121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1565410.

The product of its digits is 27648, while the sum is 40.

The spelling of 429141681121 in words is "four hundred twenty-nine billion, one hundred forty-one million, six hundred eighty-one thousand, one hundred twenty-one".