3133021231 has 4 divisors (see below), whose sum is σ = 3234086464. Its totient is φ = 3031956000.

The previous prime is 3133021223. The next prime is 3133021253. The reversal of 3133021231 is 1321203313.

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 3133021231 - 2³ = 3133021223 is a prime.

It is a super-2 number, since 2×3133021231² = 19631644067793510722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3133021199 and 3133021208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3133021261) 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, 50532570 + ... + 50532631.

It is an arithmetic number, because the mean of its divisors is an integer number (808521616).

Almost surely, 2^3133021231 is an apocalyptic number.

3133021231 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

3133021231 is a deficient number, since it is larger than the sum of its proper divisors (101065233).

3133021231 is a wasteful number, since it uses less digits than its factorization.

3133021231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101065232.

The product of its (nonzero) digits is 324, while the sum is 19.

The square root of 3133021231 is about 55973.3975295408. The cubic root of 3133021231 is about 1463.2586921949.

Adding to 3133021231 its reverse (1321203313), we get a palindrome (4454224544).

The spelling of 3133021231 in words is "three billion, one hundred thirty-three million, twenty-one thousand, two hundred thirty-one".