131000204403 has 12 divisors (see below), whose sum is σ = 197449583760. Its totient is φ = 83536362096.

The previous prime is 131000204399. The next prime is 131000204453. The reversal of 131000204403 is 304402000131.

It is not a de Polignac number, because 131000204403 - 2² = 131000204399 is a prime.

It is a super-2 number, since 2×131000204403² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (131000204453) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 316425408 + ... + 316425821.

It is an arithmetic number, because the mean of its divisors is an integer number (16454131980).

Almost surely, 2^131000204403 is an apocalyptic number.

131000204403 is a deficient number, since it is larger than the sum of its proper divisors (66449379357).

131000204403 is a wasteful number, since it uses less digits than its factorization.

131000204403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 632851258 (or 632851255 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 131000204403 its reverse (304402000131), we get a palindrome (435402204534).

The spelling of 131000204403 in words is "one hundred thirty-one billion, two hundred four thousand, four hundred three".