1231541044035 has 16 divisors (see below), whose sum is σ = 1975664797440. Its totient is φ = 655088847840.

The previous prime is 1231541044033. The next prime is 1231541044049. The reversal of 1231541044035 is 5304401451321.

It is not a de Polignac number, because 1231541044035 - 2¹ = 1231541044033 is a prime.

It is a super-4 number, since 4×1231541044035⁴ (a number of 49 digits) contains 4444 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1231541043987 and 1231541044005.

It is not an unprimeable number, because it can be changed into a prime (1231541044033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 108309271 + ... + 108320640.

It is an arithmetic number, because the mean of its divisors is an integer number (123479049840).

Almost surely, 2^{1231541044035} is an apocalyptic number.

1231541044035 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1231541044035 is a deficient number, since it is larger than the sum of its proper divisors (744123753405).

1231541044035 is a wasteful number, since it uses less digits than its factorization.

1231541044035 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 216630298.

The product of its (nonzero) digits is 28800, while the sum is 33.

Adding to 1231541044035 its reverse (5304401451321), we get a palindrome (6535942495356).

The spelling of 1231541044035 in words is "one trillion, two hundred thirty-one billion, five hundred forty-one million, forty-four thousand, thirty-five".