1213251003 has 12 divisors (see below), whose sum is σ = 1752949120. Its totient is φ = 808614576.

The previous prime is 1213250993. The next prime is 1213251031. The reversal of 1213251003 is 3001523121.

1213251003 is a `hidden beast` number, since 121 + 32 + 510 + 0 + 3 = 666.

1213251003 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1213251003 - 2¹⁴ = 1213234619 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1213251073) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21225 + ... + 53637.

Almost surely, 2^1213251003 is an apocalyptic number.

1213251003 is a deficient number, since it is larger than the sum of its proper divisors (539698117).

1213251003 is a wasteful number, since it uses less digits than its factorization.

1213251003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36578 (or 36575 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

The square root of 1213251003 is about 34831.7527982730. The cubic root of 1213251003 is about 1066.5557293588. Note that the first 3 decimals are identical.

Adding to 1213251003 its reverse (3001523121), we get a palindrome (4214774124).

The spelling of 1213251003 in words is "one billion, two hundred thirteen million, two hundred fifty-one thousand, three".