1235016161131 has 4 divisors (see below), whose sum is σ = 1241415208792. Its totient is φ = 1228617113472.

The previous prime is 1235016161081. The next prime is 1235016161161. The reversal of 1235016161131 is 1311616105321.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1235016161131 - 2⁹ = 1235016160619 is a prime.

It is a super-2 number, since 2×1235016161131² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1235016161093 and 1235016161102.

It is not an unprimeable number, because it can be changed into a prime (1235016161161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3199523541 + ... + 3199523926.

It is an arithmetic number, because the mean of its divisors is an integer number (310353802198).

Almost surely, 2^{1235016161131} is an apocalyptic number.

1235016161131 is a deficient number, since it is larger than the sum of its proper divisors (6399047661).

1235016161131 is an equidigital number, since it uses as much as digits as its factorization.

1235016161131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6399047660.

The product of its (nonzero) digits is 3240, while the sum is 31.

The spelling of 1235016161131 in words is "one trillion, two hundred thirty-five billion, sixteen million, one hundred sixty-one thousand, one hundred thirty-one".