1253054543191 has 12 divisors (see below), whose sum is σ = 1377706109416. Its totient is φ = 1138824807120.

The previous prime is 1253054543189. The next prime is 1253054543201. The reversal of 1253054543191 is 1913454503521.

It is not a de Polignac number, because 1253054543191 - 2¹ = 1253054543189 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1253054543131) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 995961 + ... + 1870306.

Almost surely, 2^{1253054543191} is an apocalyptic number.

1253054543191 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1253054543191 is a deficient number, since it is larger than the sum of its proper divisors (124651566225).

1253054543191 is a wasteful number, since it uses less digits than its factorization.

1253054543191 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2869902 (or 2869891 counting only the distinct ones).

The product of its (nonzero) digits is 324000, while the sum is 43.

The spelling of 1253054543191 in words is "one trillion, two hundred fifty-three billion, fifty-four million, five hundred forty-three thousand, one hundred ninety-one".