1211412453 has 8 divisors (see below), whose sum is σ = 1621359168. Its totient is φ = 804537024.

The previous prime is 1211412427. The next prime is 1211412457. The reversal of 1211412453 is 3542141121.

1211412453 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 1211412453 - 2²² = 1207218149 is a prime.

It is a super-3 number, since 3×1211412453³ (a number of 28 digits) contains 333 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1211412457) 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, 766900 + ... + 768477.

It is an arithmetic number, because the mean of its divisors is an integer number (202669896).

Almost surely, 2^1211412453 is an apocalyptic number.

It is an amenable number.

1211412453 is a deficient number, since it is larger than the sum of its proper divisors (409946715).

1211412453 is a wasteful number, since it uses less digits than its factorization.

1211412453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1535643.

The product of its digits is 960, while the sum is 24.

The square root of 1211412453 is about 34805.3509248219. The cubic root of 1211412453 is about 1066.0167072371.

Adding to 1211412453 its reverse (3542141121), we get a palindrome (4753553574).

The spelling of 1211412453 in words is "one billion, two hundred eleven million, four hundred twelve thousand, four hundred fifty-three".