1223014530251 has 4 divisors (see below), whose sum is σ = 1262466611904. Its totient is φ = 1183562448600.

The previous prime is 1223014530191. The next prime is 1223014530253. The reversal of 1223014530251 is 1520354103221.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1223014530251 - 2³⁸ = 948136623307 is a prime.

It is a super-3 number, since 3×1223014530251³ (a number of 37 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1223014530253) 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, 19726040780 + ... + 19726040841.

It is an arithmetic number, because the mean of its divisors is an integer number (315616652976).

Almost surely, 2^{1223014530251} is an apocalyptic number.

1223014530251 is a deficient number, since it is larger than the sum of its proper divisors (39452081653).

1223014530251 is an equidigital number, since it uses as much as digits as its factorization.

1223014530251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39452081652.

The product of its (nonzero) digits is 7200, while the sum is 29.

Adding to 1223014530251 its reverse (1520354103221), we get a palindrome (2743368633472).

The spelling of 1223014530251 in words is "one trillion, two hundred twenty-three billion, fourteen million, five hundred thirty thousand, two hundred fifty-one".