1231415333011 has 4 divisors (see below), whose sum is σ = 1231418551000. Its totient is φ = 1231412115024.

The previous prime is 1231415333009. The next prime is 1231415333017. The reversal of 1231415333011 is 1103335141321.

It is a happy number.

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 1231415333011 - 2¹ = 1231415333009 is a prime.

It is a super-2 number, since 2×1231415333011² (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 (1231415333017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 943146 + ... + 1830943.

It is an arithmetic number, because the mean of its divisors is an integer number (307854637750).

Almost surely, 2^{1231415333011} is an apocalyptic number.

1231415333011 is a deficient number, since it is larger than the sum of its proper divisors (3217989).

1231415333011 is an equidigital number, since it uses as much as digits as its factorization.

1231415333011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3217988.

The product of its (nonzero) digits is 3240, while the sum is 28.

The spelling of 1231415333011 in words is "one trillion, two hundred thirty-one billion, four hundred fifteen million, three hundred thirty-three thousand, eleven".