1245352511403 has 80 divisors (see below), whose sum is σ = 2497801211136. Its totient is φ = 597171994560.

The previous prime is 1245352511393. The next prime is 1245352511419. The reversal of 1245352511403 is 3041152535421.

1245352511403 is a `hidden beast` number, since 1 + 2 + 4 + 53 + 52 + 511 + 40 + 3 = 666.

It is not a de Polignac number, because 1245352511403 - 2¹⁶ = 1245352445867 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1245352511453) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 7598601 + ... + 7760762.

Almost surely, 2^{1245352511403} is an apocalyptic number.

1245352511403 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1245352511403 is an abundant number, since it is smaller than the sum of its proper divisors (1252448699733).

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

1245352511403 is a wasteful number, since it uses less digits than its factorization.

1245352511403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15359406 (or 15359397 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 36.

The spelling of 1245352511403 in words is "one trillion, two hundred forty-five billion, three hundred fifty-two million, five hundred eleven thousand, four hundred three".