1212903133 has 8 divisors (see below), whose sum is σ = 1374951200. Its totient is φ = 1060676208.

The previous prime is 1212903127. The next prime is 1212903143. The reversal of 1212903133 is 3313092121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1212903133 - 2¹³ = 1212894941 is a prime.

It is a super-2 number, since 2×1212903133² = 2942268020082431378, 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 = 1212903098 and 1212903107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1212903143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2455023 + ... + 2455516.

It is an arithmetic number, because the mean of its divisors is an integer number (171868900).

Almost surely, 2^1212903133 is an apocalyptic number.

1212903133 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1212903133 is a deficient number, since it is larger than the sum of its proper divisors (162048067).

1212903133 is a wasteful number, since it uses less digits than its factorization.

1212903133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4910571.

The product of its (nonzero) digits is 972, while the sum is 25.

The square root of 1212903133 is about 34826.7588644134. The cubic root of 1212903133 is about 1066.4537833732.

Adding to 1212903133 its reverse (3313092121), we get a palindrome (4525995254).

The spelling of 1212903133 in words is "one billion, two hundred twelve million, nine hundred three thousand, one hundred thirty-three".