1253535143103 has 96 divisors (see below), whose sum is σ = 2028197283840. Its totient is φ = 741951175680.

The previous prime is 1253535143099. The next prime is 1253535143123. The reversal of 1253535143103 is 3013415353521.

1253535143103 is a `hidden beast` number, since 1 + 2 + 5 + 3 + 535 + 14 + 3 + 103 = 666.

It is not a de Polignac number, because 1253535143103 - 2² = 1253535143099 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1253535143123) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 303297025 + ... + 303301157.

It is an arithmetic number, because the mean of its divisors is an integer number (21127055040).

Almost surely, 2^{1253535143103} is an apocalyptic number.

1253535143103 is a deficient number, since it is larger than the sum of its proper divisors (774662140737).

1253535143103 is a wasteful number, since it uses less digits than its factorization.

1253535143103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5349 (or 5346 counting only the distinct ones).

The product of its (nonzero) digits is 81000, while the sum is 36.

The spelling of 1253535143103 in words is "one trillion, two hundred fifty-three billion, five hundred thirty-five million, one hundred forty-three thousand, one hundred three".