202054434431 has 8 divisors (see below), whose sum is σ = 204175878144. Its totient is φ = 199943842680.

The previous prime is 202054434419. The next prime is 202054434467. The reversal of 202054434431 is 134434450202.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 202054434431 - 2⁶ = 202054434367 is a prime.

It is a super-2 number, since 2×202054434431² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202054434401) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2675555 + ... + 2750036.

It is an arithmetic number, because the mean of its divisors is an integer number (25521984768).

Almost surely, 2^202054434431 is an apocalyptic number.

202054434431 is a deficient number, since it is larger than the sum of its proper divisors (2121443713).

202054434431 is a wasteful number, since it uses less digits than its factorization.

202054434431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5425981.

The product of its (nonzero) digits is 46080, while the sum is 32.

Adding to 202054434431 its reverse (134434450202), we get a palindrome (336488884633).

The spelling of 202054434431 in words is "two hundred two billion, fifty-four million, four hundred thirty-four thousand, four hundred thirty-one".