1253304540423 has 24 divisors (see below), whose sum is σ = 1949852908640. Its totient is φ = 771158283840.

The previous prime is 1253304540409. The next prime is 1253304540469. The reversal of 1253304540423 is 3240454033521.

1253304540423 is a `hidden beast` number, since 1 + 2 + 533 + 0 + 45 + 40 + 42 + 3 = 666.

It is not a de Polignac number, because 1253304540423 - 2¹³ = 1253304532231 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1253304540023) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 122358 + ... + 1587948.

Almost surely, 2^{1253304540423} is an apocalyptic number.

1253304540423 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1253304540423 is a deficient number, since it is larger than the sum of its proper divisors (696548368217).

1253304540423 is a wasteful number, since it uses less digits than its factorization.

1253304540423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1472919 (or 1472916 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 36.

Adding to 1253304540423 its reverse (3240454033521), we get a palindrome (4493758573944).

The spelling of 1253304540423 in words is "one trillion, two hundred fifty-three billion, three hundred four million, five hundred forty thousand, four hundred twenty-three".