11451320542450 has 24 divisors (see below), whose sum is σ = 21311217534960. Its totient is φ = 4577998899600.

The previous prime is 11451320542429. The next prime is 11451320542471. The reversal of 11451320542450 is 5424502315411.

It is an interprime number because it is at equal distance from previous prime (11451320542429) and next prime (11451320542471).

It is a super-2 number, since 2×11451320542450² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 63141480 + ... + 63322579.

It is an arithmetic number, because the mean of its divisors is an integer number (887967397290).

Almost surely, 2^{11451320542450} is an apocalyptic number.

11451320542450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11451320542450 is a deficient number, since it is larger than the sum of its proper divisors (9859896992510).

11451320542450 is a wasteful number, since it uses less digits than its factorization.

11451320542450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126465882 (or 126465877 counting only the distinct ones).

The product of its (nonzero) digits is 96000, while the sum is 37.

Adding to 11451320542450 its reverse (5424502315411), we get a palindrome (16875822857861).

The spelling of 11451320542450 in words is "eleven trillion, four hundred fifty-one billion, three hundred twenty million, five hundred forty-two thousand, four hundred fifty".