1230353511 has 4 divisors (see below), whose sum is σ = 1640471352. Its totient is φ = 820235672.

The previous prime is 1230353477. The next prime is 1230353549. The reversal of 1230353511 is 1153530321.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1153530321 = 3 ⋅384510107.

It is a cyclic number.

It is not a de Polignac number, because 1230353511 - 2⁶ = 1230353447 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1230358511) 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, 205058916 + ... + 205058921.

It is an arithmetic number, because the mean of its divisors is an integer number (410117838).

Almost surely, 2^1230353511 is an apocalyptic number.

1230353511 is a deficient number, since it is larger than the sum of its proper divisors (410117841).

1230353511 is an equidigital number, since it uses as much as digits as its factorization.

1230353511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 410117840.

The product of its (nonzero) digits is 1350, while the sum is 24.

The square root of 1230353511 is about 35076.3953535708. The cubic root of 1230353511 is about 1071.5439065454.

Adding to 1230353511 its reverse (1153530321), we get a palindrome (2383883832).

The spelling of 1230353511 in words is "one billion, two hundred thirty million, three hundred fifty-three thousand, five hundred eleven".