1234521531214 has 4 divisors (see below), whose sum is σ = 1851782296824. Its totient is φ = 617260765606.

The previous prime is 1234521531211. The next prime is 1234521531223. The reversal of 1234521531214 is 4121351254321.

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

It is a super-2 number, since 2×1234521531214² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1234521531214.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1234521531211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 308630382802 + ... + 308630382805.

It is an arithmetic number, because the mean of its divisors is an integer number (462945574206).

Almost surely, 2^{1234521531214} is an apocalyptic number.

1234521531214 is a deficient number, since it is larger than the sum of its proper divisors (617260765610).

1234521531214 is an equidigital number, since it uses as much as digits as its factorization.

1234521531214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 617260765609.

The product of its digits is 28800, while the sum is 34.

Adding to 1234521531214 its reverse (4121351254321), we get a palindrome (5355872785535).

The spelling of 1234521531214 in words is "one trillion, two hundred thirty-four billion, five hundred twenty-one million, five hundred thirty-one thousand, two hundred fourteen".