1223623051 has 24 divisors (see below), whose sum is σ = 1458003456. Its totient is φ = 1023457680.

The previous prime is 1223623043. The next prime is 1223623061. The reversal of 1223623051 is 1503263221.

It is not a de Polignac number, because 1223623051 - 2³ = 1223623043 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1223623061) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1121016 + ... + 1122106.

It is an arithmetic number, because the mean of its divisors is an integer number (60750144).

Almost surely, 2^1223623051 is an apocalyptic number.

1223623051 is a deficient number, since it is larger than the sum of its proper divisors (234380405).

1223623051 is a wasteful number, since it uses less digits than its factorization.

1223623051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1639 (or 1632 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 1223623051 is about 34980.3237692278. The cubic root of 1223623051 is about 1069.5864273517.

Adding to 1223623051 its reverse (1503263221), we get a palindrome (2726886272).

The spelling of 1223623051 in words is "one billion, two hundred twenty-three million, six hundred twenty-three thousand, fifty-one".