2140512211531 has 16 divisors (see below), whose sum is σ = 2257791989760. Its totient is φ = 2023697571840.

The previous prime is 2140512211483. The next prime is 2140512211543. The reversal of 2140512211531 is 1351122150412.

It is a cyclic number.

It is not a de Polignac number, because 2140512211531 - 2³⁵ = 2106152473163 is a prime.

It is a super-2 number, since 2×2140512211531² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2140512211531.

It is not an unprimeable number, because it can be changed into a prime (2140512211231) 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, 26419275 + ... + 26500171.

It is an arithmetic number, because the mean of its divisors is an integer number (141111999360).

Almost surely, 2^{2140512211531} is an apocalyptic number.

2140512211531 is a deficient number, since it is larger than the sum of its proper divisors (117279778229).

2140512211531 is a wasteful number, since it uses less digits than its factorization.

2140512211531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83754.

The product of its (nonzero) digits is 2400, while the sum is 28.

Adding to 2140512211531 its reverse (1351122150412), we get a palindrome (3491634361943).

The spelling of 2140512211531 in words is "two trillion, one hundred forty billion, five hundred twelve million, two hundred eleven thousand, five hundred thirty-one".