2153161231043 has 4 divisors (see below), whose sum is σ = 2203234748088. Its totient is φ = 2103087714000.

The previous prime is 2153161231009. The next prime is 2153161231063. The reversal of 2153161231043 is 3401321613512.

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 2153161231043 - 2³⁰ = 2152087489219 is a prime.

It is a super-2 number, since 2×2153161231043² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2153161231063) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25036758458 + ... + 25036758543.

It is an arithmetic number, because the mean of its divisors is an integer number (550808687022).

Almost surely, 2^{2153161231043} is an apocalyptic number.

2153161231043 is a deficient number, since it is larger than the sum of its proper divisors (50073517045).

2153161231043 is an equidigital number, since it uses as much as digits as its factorization.

2153161231043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50073517044.

The product of its (nonzero) digits is 12960, while the sum is 32.

Adding to 2153161231043 its reverse (3401321613512), we get a palindrome (5554482844555).

The spelling of 2153161231043 in words is "two trillion, one hundred fifty-three billion, one hundred sixty-one million, two hundred thirty-one thousand, forty-three".