1311021414203 has 4 divisors (see below), whose sum is σ = 1312320742680. Its totient is φ = 1309722085728.

The previous prime is 1311021414193. The next prime is 1311021414233. The reversal of 1311021414203 is 3024141201131.

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 1311021414203 - 2⁶ = 1311021414139 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1311021414233) 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, 649662725 + ... + 649664742.

It is an arithmetic number, because the mean of its divisors is an integer number (328080185670).

Almost surely, 2^{1311021414203} is an apocalyptic number.

1311021414203 is a deficient number, since it is larger than the sum of its proper divisors (1299328477).

1311021414203 is a wasteful number, since it uses less digits than its factorization.

1311021414203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1299328476.

The product of its (nonzero) digits is 576, while the sum is 23.

Adding to 1311021414203 its reverse (3024141201131), we get a palindrome (4335162615334).

The spelling of 1311021414203 in words is "one trillion, three hundred eleven billion, twenty-one million, four hundred fourteen thousand, two hundred three".