1232513351 has 4 divisors (see below), whose sum is σ = 1286100912. Its totient is φ = 1178925792.

The previous prime is 1232513309. The next prime is 1232513431. The reversal of 1232513351 is 1533152321.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1533152321 = 881 ⋅1740241.

It is a cyclic number.

It is not a de Polignac number, because 1232513351 - 2⁶ = 1232513287 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1232513351.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1232513551) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26793746 + ... + 26793791.

It is an arithmetic number, because the mean of its divisors is an integer number (321525228).

Almost surely, 2^1232513351 is an apocalyptic number.

1232513351 is a deficient number, since it is larger than the sum of its proper divisors (53587561).

1232513351 is an equidigital number, since it uses as much as digits as its factorization.

1232513351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53587560.

The product of its digits is 2700, while the sum is 26.

The square root of 1232513351 is about 35107.1695099448. The cubic root of 1232513351 is about 1072.1705585415.

Adding to 1232513351 its reverse (1533152321), we get a palindrome (2765665672).

The spelling of 1232513351 in words is "one billion, two hundred thirty-two million, five hundred thirteen thousand, three hundred fifty-one".