2125543011 has 16 divisors (see below), whose sum is σ = 2846893728. Its totient is φ = 1410624000.

The previous prime is 2125543003. The next prime is 2125543037. The reversal of 2125543011 is 1103455212.

It is a happy number.

It is not a de Polignac number, because 2125543011 - 2³ = 2125543003 is a prime.

It is a super-2 number, since 2×2125543011² = 9035866183221892242, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2125543411) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1141221 + ... + 1143081.

It is an arithmetic number, because the mean of its divisors is an integer number (177930858).

Almost surely, 2^2125543011 is an apocalyptic number.

2125543011 is a deficient number, since it is larger than the sum of its proper divisors (721350717).

2125543011 is a wasteful number, since it uses less digits than its factorization.

2125543011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3382.

The product of its (nonzero) digits is 1200, while the sum is 24.

The square root of 2125543011 is about 46103.6116914933. The cubic root of 2125543011 is about 1285.7502945665.

Adding to 2125543011 its reverse (1103455212), we get a palindrome (3228998223).

The spelling of 2125543011 in words is "two billion, one hundred twenty-five million, five hundred forty-three thousand, eleven".