1312020033 has 16 divisors (see below), whose sum is σ = 1853611776. Its totient is φ = 822629120.

The previous prime is 1312020023. The next prime is 1312020043. The reversal of 1312020033 is 3300202131.

It is an interprime number because it is at equal distance from previous prime (1312020023) and next prime (1312020043).

It is a cyclic number.

It is not a de Polignac number, because 1312020033 - 2¹⁷ = 1311888961 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1312019994 and 1312020021.

It is not an unprimeable number, because it can be changed into a prime (1312020023) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 67528 + ... + 84758.

It is an arithmetic number, because the mean of its divisors is an integer number (115850736).

Almost surely, 2^1312020033 is an apocalyptic number.

It is an amenable number.

1312020033 is a deficient number, since it is larger than the sum of its proper divisors (541591743).

1312020033 is a wasteful number, since it uses less digits than its factorization.

1312020033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18744.

The product of its (nonzero) digits is 108, while the sum is 15.

The square root of 1312020033 is about 36221.8170858393. The cubic root of 1312020033 is about 1094.7463068168.

Adding to 1312020033 its reverse (3300202131), we get a palindrome (4612222164).

It can be divided in two parts, 13120 and 20033, that added together give a triangular number (33153 = T₂₅₇).

The spelling of 1312020033 in words is "one billion, three hundred twelve million, twenty thousand, thirty-three".