1303103121331 has 4 divisors (see below), whose sum is σ = 1421567041464. Its totient is φ = 1184639201200.

The previous prime is 1303103121269. The next prime is 1303103121361. The reversal of 1303103121331 is 1331213013031.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1303103121331 - 2⁹ = 1303103120819 is a prime.

It is a super-2 number, since 2×1303103121331² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1303103121361) 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, 59231960050 + ... + 59231960071.

It is an arithmetic number, because the mean of its divisors is an integer number (355391760366).

Almost surely, 2^{1303103121331} is an apocalyptic number.

1303103121331 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1303103121331 is a deficient number, since it is larger than the sum of its proper divisors (118463920133).

1303103121331 is a wasteful number, since it uses less digits than its factorization.

1303103121331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118463920132.

The product of its (nonzero) digits is 486, while the sum is 22.

Adding to 1303103121331 its reverse (1331213013031), we get a palindrome (2634316134362).

The spelling of 1303103121331 in words is "one trillion, three hundred three billion, one hundred three million, one hundred twenty-one thousand, three hundred thirty-one".