2129543131 has 8 divisors (see below), whose sum is σ = 2267410320. Its totient is φ = 1993075968.

The previous prime is 2129543099. The next prime is 2129543153. The reversal of 2129543131 is 1313459212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2129543131 - 2⁵ = 2129543099 is a prime.

It is a super-2 number, since 2×2129543131² = 9069907893578566322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2129543093 and 2129543102.

It is not an unprimeable number, because it can be changed into a prime (2129543431) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 346866 + ... + 352951.

It is an arithmetic number, because the mean of its divisors is an integer number (283426290).

Almost surely, 2^2129543131 is an apocalyptic number.

2129543131 is a deficient number, since it is larger than the sum of its proper divisors (137867189).

2129543131 is a wasteful number, since it uses less digits than its factorization.

2129543131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 700013.

The product of its digits is 6480, while the sum is 31.

The square root of 2129543131 is about 46146.9731510096. The cubic root of 2129543131 is about 1286.5563525103.

The spelling of 2129543131 in words is "two billion, one hundred twenty-nine million, five hundred forty-three thousand, one hundred thirty-one".