20203432131 has 8 divisors (see below), whose sum is σ = 26938941120. Its totient is φ = 13468438952.

The previous prime is 20203432129. The next prime is 20203432133. The reversal of 20203432131 is 13123430202.

It is an interprime number because it is at equal distance from previous prime (20203432129) and next prime (20203432133).

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

It is a cyclic number.

It is not a de Polignac number, because 20203432131 - 2¹ = 20203432129 is a prime.

It is a super-2 number, since 2×20203432131² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20203432098 and 20203432107.

It is not an unprimeable number, because it can be changed into a prime (20203432133) 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, 25761 + ... + 202658.

It is an arithmetic number, because the mean of its divisors is an integer number (3367367640).

Almost surely, 2^20203432131 is an apocalyptic number.

20203432131 is a deficient number, since it is larger than the sum of its proper divisors (6735508989).

20203432131 is a wasteful number, since it uses less digits than its factorization.

20203432131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 257905.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 20203432131 its reverse (13123430202), we get a palindrome (33326862333).

The spelling of 20203432131 in words is "twenty billion, two hundred three million, four hundred thirty-two thousand, one hundred thirty-one".