1253451110111 has 8 divisors (see below), whose sum is σ = 1255772232960. Its totient is φ = 1251130503168.

The previous prime is 1253451110101. The next prime is 1253451110161. The reversal of 1253451110111 is 1110111543521.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1253451110111 - 2³⁰ = 1252377368287 is a prime.

It is a super-2 number, since 2×1253451110111² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1253451110101) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4916930 + ... + 5165568.

It is an arithmetic number, because the mean of its divisors is an integer number (156971529120).

Almost surely, 2^{1253451110111} is an apocalyptic number.

1253451110111 is a deficient number, since it is larger than the sum of its proper divisors (2321122849).

1253451110111 is an equidigital number, since it uses as much as digits as its factorization.

1253451110111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 257953.

The product of its (nonzero) digits is 600, while the sum is 26.

Adding to 1253451110111 its reverse (1110111543521), we get a palindrome (2363562653632).

The spelling of 1253451110111 in words is "one trillion, two hundred fifty-three billion, four hundred fifty-one million, one hundred ten thousand, one hundred eleven".