131303513426 has 8 divisors (see below), whose sum is σ = 197057166924. Its totient is φ = 65617791120.

The previous prime is 131303513423. The next prime is 131303513449. The reversal of 131303513426 is 624315303131.

It can be written as a sum of positive squares in 2 ways, for example, as 116349892201 + 14953621225 = 341101^2 + 122285^2 .

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

It is a super-2 number, since 2×131303513426² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 131303513392 and 131303513401.

It is not an unprimeable number, because it can be changed into a prime (131303513423) 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, 16977965 + ... + 16985696.

Almost surely, 2^131303513426 is an apocalyptic number.

131303513426 is a deficient number, since it is larger than the sum of its proper divisors (65753653498).

131303513426 is a wasteful number, since it uses less digits than its factorization.

131303513426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33965596.

The product of its (nonzero) digits is 19440, while the sum is 32.

Adding to 131303513426 its reverse (624315303131), we get a palindrome (755618816557).

The spelling of 131303513426 in words is "one hundred thirty-one billion, three hundred three million, five hundred thirteen thousand, four hundred twenty-six".