1451445321213 has 16 divisors (see below), whose sum is σ = 2159518083840. Its totient is φ = 963477290592.

The previous prime is 1451445321211. The next prime is 1451445321217. The reversal of 1451445321213 is 3121235441541.

1451445321213 is a `hidden beast` number, since 14 + 51 + 44 + 532 + 1 + 21 + 3 = 666.

It is not a de Polignac number, because 1451445321213 - 2¹ = 1451445321211 is a prime.

It is a super-2 number, since 2×1451445321213² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1451445321211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 115352581 + ... + 115365162.

It is an arithmetic number, because the mean of its divisors is an integer number (134969880240).

Almost surely, 2^{1451445321213} is an apocalyptic number.

It is an amenable number.

1451445321213 is a deficient number, since it is larger than the sum of its proper divisors (708072762627).

1451445321213 is a wasteful number, since it uses less digits than its factorization.

1451445321213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230717985 (or 230717979 counting only the distinct ones).

The product of its digits is 57600, while the sum is 36.

The spelling of 1451445321213 in words is "one trillion, four hundred fifty-one billion, four hundred forty-five million, three hundred twenty-one thousand, two hundred thirteen".