1213444401452 has 24 divisors (see below), whose sum is σ = 2124742000080. Its totient is φ = 606375357120.

The previous prime is 1213444401443. The next prime is 1213444401461. The reversal of 1213444401452 is 2541044443121.

It is an interprime number because it is at equal distance from previous prime (1213444401443) and next prime (1213444401461).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 90962999 + ... + 90976337.

It is an arithmetic number, because the mean of its divisors is an integer number (88530916670).

Almost surely, 2^{1213444401452} is an apocalyptic number.

It is an amenable number.

1213444401452 is a deficient number, since it is larger than the sum of its proper divisors (911297598628).

1213444401452 is a wasteful number, since it uses less digits than its factorization.

1213444401452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24641 (or 24639 counting only the distinct ones).

The product of its (nonzero) digits is 61440, while the sum is 35.

Adding to 1213444401452 its reverse (2541044443121), we get a palindrome (3754488844573).

The spelling of 1213444401452 in words is "one trillion, two hundred thirteen billion, four hundred forty-four million, four hundred one thousand, four hundred fifty-two".