1403213131 has 2 divisors, whose sum is σ = 1403213132. Its totient is φ = 1403213130.

The previous prime is 1403213129. The next prime is 1403213143. The reversal of 1403213131 is 1313123041.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1403213131 - 2¹ = 1403213129 is a prime.

It is a super-2 number, since 2×1403213131² = 3938014182021646322, which contains 22 as substring.

Together with 1403213129, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 1403213099 and 1403213108.

It is not a weakly prime, because it can be changed into another prime (1403213191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 701606565 + 701606566.

It is an arithmetic number, because the mean of its divisors is an integer number (701606566).

Almost surely, 2^1403213131 is an apocalyptic number.

1403213131 is a deficient number, since it is larger than the sum of its proper divisors (1).

1403213131 is an equidigital number, since it uses as much as digits as its factorization.

1403213131 is an evil number, because the sum of its binary digits is even.

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

The square root of 1403213131 is about 37459.4865287820. The cubic root of 1403213131 is about 1119.5441201100.

Adding to 1403213131 its reverse (1313123041), we get a palindrome (2716336172).

The spelling of 1403213131 in words is "one billion, four hundred three million, two hundred thirteen thousand, one hundred thirty-one".