20402042141 has 16 divisors (see below), whose sum is σ = 22581936384. Its totient is φ = 18314472384.

The previous prime is 20402042119. The next prime is 20402042147. The reversal of 20402042141 is 14124020402.

It is not a de Polignac number, because 20402042141 - 2¹⁰ = 20402041117 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20402042147) 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, 10415 + ... + 202268.

It is an arithmetic number, because the mean of its divisors is an integer number (1411371024).

Almost surely, 2^20402042141 is an apocalyptic number.

It is an amenable number.

20402042141 is a deficient number, since it is larger than the sum of its proper divisors (2179894243).

20402042141 is a wasteful number, since it uses less digits than its factorization.

20402042141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212900.

The product of its (nonzero) digits is 512, while the sum is 20.

Adding to 20402042141 its reverse (14124020402), we get a palindrome (34526062543).

The spelling of 20402042141 in words is "twenty billion, four hundred two million, forty-two thousand, one hundred forty-one".