1230223551 has 8 divisors (see below), whose sum is σ = 1648886784. Its totient is φ = 815854680.

The previous prime is 1230223537. The next prime is 1230223559. The reversal of 1230223551 is 1553220321.

It is a happy number.

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

It is not a de Polignac number, because 1230223551 - 2⁶ = 1230223487 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1230223559) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1072921 + ... + 1074066.

It is an arithmetic number, because the mean of its divisors is an integer number (206110848).

Almost surely, 2^1230223551 is an apocalyptic number.

1230223551 is a deficient number, since it is larger than the sum of its proper divisors (418663233).

1230223551 is a wasteful number, since it uses less digits than its factorization.

1230223551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2147181.

The product of its (nonzero) digits is 1800, while the sum is 24.

The square root of 1230223551 is about 35074.5427767776. The cubic root of 1230223551 is about 1071.5061768067.

Adding to 1230223551 its reverse (1553220321), we get a palindrome (2783443872).

It can be divided in two parts, 12302 and 23551, that added together give a palindrome (35853).

The spelling of 1230223551 in words is "one billion, two hundred thirty million, two hundred twenty-three thousand, five hundred fifty-one".