1303213031 has 2 divisors, whose sum is σ = 1303213032. Its totient is φ = 1303213030.

The previous prime is 1303212971. The next prime is 1303213033. The reversal of 1303213031 is 1303123031.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1303213031 - 2²⁶ = 1236104167 is a prime.

It is a super-2 number, since 2×1303213031² = 3396728408336413922, which contains 22 as substring.

Together with 1303213033, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1303213033) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 651606515 + 651606516.

It is an arithmetic number, because the mean of its divisors is an integer number (651606516).

Almost surely, 2^1303213031 is an apocalyptic number.

1303213031 is a deficient number, since it is larger than the sum of its proper divisors (1).

1303213031 is an equidigital number, since it uses as much as digits as its factorization.

1303213031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 162, while the sum is 17.

The square root of 1303213031 is about 36100.0419805850. The cubic root of 1303213031 is about 1092.2912918136.

Adding to 1303213031 its reverse (1303123031), we get a palindrome (2606336062).

Subtracting from 1303213031 its reverse (1303123031), we obtain a square (90000 = 300²).

The spelling of 1303213031 in words is "one billion, three hundred three million, two hundred thirteen thousand, thirty-one".