2152231254531 has 24 divisors (see below), whose sum is σ = 3153966716160. Its totient is φ = 1413982710000.

The previous prime is 2152231254527. The next prime is 2152231254539. The reversal of 2152231254531 is 1354521322512.

2152231254531 is a `hidden beast` number, since 2 + 1 + 52 + 2 + 31 + 2 + 545 + 31 = 666.

It is not a de Polignac number, because 2152231254531 - 2² = 2152231254527 is a prime.

It is a super-2 number, since 2×2152231254531² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2152231254539) 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 23 ways as a sum of consecutive naturals, for example, 690250 + ... + 2186528.

It is an arithmetic number, because the mean of its divisors is an integer number (131415279840).

Almost surely, 2^{2152231254531} is an apocalyptic number.

2152231254531 is a deficient number, since it is larger than the sum of its proper divisors (1001735461629).

2152231254531 is a wasteful number, since it uses less digits than its factorization.

2152231254531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1498607 (or 1498604 counting only the distinct ones).

The product of its digits is 72000, while the sum is 36.

The spelling of 2152231254531 in words is "two trillion, one hundred fifty-two billion, two hundred thirty-one million, two hundred fifty-four thousand, five hundred thirty-one".