1231114053533 has 16 divisors (see below), whose sum is σ = 1516993731456. Its totient is φ = 972926268480.

The previous prime is 1231114053527. The next prime is 1231114053553. The reversal of 1231114053533 is 3353504111321.

It is a cyclic number.

It is not a de Polignac number, because 1231114053533 - 2²² = 1231109859229 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1231114053533.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1231114053503) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7852463 + ... + 8007708.

It is an arithmetic number, because the mean of its divisors is an integer number (94812108216).

Almost surely, 2^{1231114053533} is an apocalyptic number.

1231114053533 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1231114053533 is a deficient number, since it is larger than the sum of its proper divisors (285879677923).

1231114053533 is a wasteful number, since it uses less digits than its factorization.

1231114053533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15861044.

The product of its (nonzero) digits is 16200, while the sum is 32.

Adding to 1231114053533 its reverse (3353504111321), we get a palindrome (4584618164854).

The spelling of 1231114053533 in words is "one trillion, two hundred thirty-one billion, one hundred fourteen million, fifty-three thousand, five hundred thirty-three".