1315451020040 has 32 divisors (see below), whose sum is σ = 2982358431360. Its totient is φ = 522163761600.

The previous prime is 1315451020033. The next prime is 1315451020043. The reversal of 1315451020040 is 400201545131.

It is a super-2 number, since 2×1315451020040² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1315451019991 and 1315451020009.

It is not an unprimeable number, because it can be changed into a prime (1315451020043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 125514896 + ... + 125525375.

It is an arithmetic number, because the mean of its divisors is an integer number (93198700980).

Almost surely, 2^{1315451020040} is an apocalyptic number.

1315451020040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1315451020040 is an abundant number, since it is smaller than the sum of its proper divisors (1666907411320).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1315451020040 is a wasteful number, since it uses less digits than its factorization.

1315451020040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 251040413 (or 251040409 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 26.

Adding to 1315451020040 its reverse (400201545131), we get a palindrome (1715652565171).

The spelling of 1315451020040 in words is "one trillion, three hundred fifteen billion, four hundred fifty-one million, twenty thousand, forty".