1403312131 has 4 divisors (see below), whose sum is σ = 1511259232. Its totient is φ = 1295365032.

The previous prime is 1403312093. The next prime is 1403312153. The reversal of 1403312131 is 1312133041.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1312133041 = 79 ⋅16609279.

It is not a de Polignac number, because 1403312131 - 2¹⁹ = 1402787843 is a prime.

It is a super-2 number, since 2×1403312131² = 3938569874023522322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1403312099 and 1403312108.

It is not an unprimeable number, because it can be changed into a prime (1403312531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53973531 + ... + 53973556.

It is an arithmetic number, because the mean of its divisors is an integer number (377814808).

Almost surely, 2^1403312131 is an apocalyptic number.

1403312131 is a deficient number, since it is larger than the sum of its proper divisors (107947101).

1403312131 is a wasteful number, since it uses less digits than its factorization.

1403312131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107947100.

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 1403312131 is about 37460.8079330919. The cubic root of 1403312131 is about 1119.5704483179.

Adding to 1403312131 its reverse (1312133041), we get a palindrome (2715445172).

The spelling of 1403312131 in words is "one billion, four hundred three million, three hundred twelve thousand, one hundred thirty-one".