20121141433 has 4 divisors (see below), whose sum is σ = 20122807888. Its totient is φ = 20119474980.

The previous prime is 20121141431. The next prime is 20121141463. The reversal of 20121141433 is 33414112102.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 20121141433 - 2¹ = 20121141431 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20121141431) 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, 814983 + ... + 839308.

It is an arithmetic number, because the mean of its divisors is an integer number (5030701972).

Almost surely, 2^20121141433 is an apocalyptic number.

It is an amenable number.

20121141433 is a deficient number, since it is larger than the sum of its proper divisors (1666455).

20121141433 is a wasteful number, since it uses less digits than its factorization.

20121141433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1666454.

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 20121141433 its reverse (33414112102), we get a palindrome (53535253535).

The spelling of 20121141433 in words is "twenty billion, one hundred twenty-one million, one hundred forty-one thousand, four hundred thirty-three".