1312223033 has 16 divisors (see below), whose sum is σ = 1485976320. Its totient is φ = 1148380800.

The previous prime is 1312223021. The next prime is 1312223053. The reversal of 1312223033 is 3303222131.

It is a cyclic number.

It is not a de Polignac number, because 1312223033 - 2⁶ = 1312222969 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1312222996 and 1312223014.

It is not an unprimeable number, because it can be changed into a prime (1312223053) 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 15 ways as a sum of consecutive naturals, for example, 10733 + ... + 52341.

It is an arithmetic number, because the mean of its divisors is an integer number (92873520).

Almost surely, 2^1312223033 is an apocalyptic number.

It is an amenable number.

1312223033 is a deficient number, since it is larger than the sum of its proper divisors (173753287).

1312223033 is a wasteful number, since it uses less digits than its factorization.

1312223033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41728.

The product of its (nonzero) digits is 648, while the sum is 20.

The square root of 1312223033 is about 36224.6191560381. The cubic root of 1312223033 is about 1094.8027648063.

Adding to 1312223033 its reverse (3303222131), we get a palindrome (4615445164).

The spelling of 1312223033 in words is "one billion, three hundred twelve million, two hundred twenty-three thousand, thirty-three".