1311502402023 has 32 divisors (see below), whose sum is σ = 2066827352832. Its totient is φ = 730696512000.

The previous prime is 1311502402013. The next prime is 1311502402031. The reversal of 1311502402023 is 3202042051131.

It is not a de Polignac number, because 1311502402023 - 2⁸ = 1311502401767 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1311502401984 and 1311502402002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1311502402013) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 27159528 + ... + 27207773.

It is an arithmetic number, because the mean of its divisors is an integer number (64588354776).

Almost surely, 2^{1311502402023} is an apocalyptic number.

1311502402023 is a deficient number, since it is larger than the sum of its proper divisors (755324950809).

1311502402023 is a wasteful number, since it uses less digits than its factorization.

1311502402023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54367375.

The product of its (nonzero) digits is 1440, while the sum is 24.

Adding to 1311502402023 its reverse (3202042051131), we get a palindrome (4513544453154).

The spelling of 1311502402023 in words is "one trillion, three hundred eleven billion, five hundred two million, four hundred two thousand, twenty-three".