1231033413 has 16 divisors (see below), whose sum is σ = 1657895616. Its totient is φ = 812448000.

The previous prime is 1231033409. The next prime is 1231033417. The reversal of 1231033413 is 3143301321.

It is an interprime number because it is at equal distance from previous prime (1231033409) and next prime (1231033417).

It is not a de Polignac number, because 1231033413 - 2² = 1231033409 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1231033413.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1231033417) 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, 377038 + ... + 380288.

It is an arithmetic number, because the mean of its divisors is an integer number (103618476).

Almost surely, 2^1231033413 is an apocalyptic number.

It is an amenable number.

1231033413 is a deficient number, since it is larger than the sum of its proper divisors (426862203).

1231033413 is a wasteful number, since it uses less digits than its factorization.

1231033413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4484.

The product of its (nonzero) digits is 648, while the sum is 21.

The square root of 1231033413 is about 35086.0857463468. The cubic root of 1231033413 is about 1071.7412510973.

Adding to 1231033413 its reverse (3143301321), we get a palindrome (4374334734).

The spelling of 1231033413 in words is "one billion, two hundred thirty-one million, thirty-three thousand, four hundred thirteen".