2130511031 has 4 divisors (see below), whose sum is σ = 2324193864. Its totient is φ = 1936828200.

The previous prime is 2130511027. The next prime is 2130511037. The reversal of 2130511031 is 1301150312.

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 2130511031 - 2² = 2130511027 is a prime.

It is a super-2 number, since 2×2130511031² = 9078154506425365922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2130511037) 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, 96841400 + ... + 96841421.

It is an arithmetic number, because the mean of its divisors is an integer number (581048466).

Almost surely, 2^2130511031 is an apocalyptic number.

2130511031 is a deficient number, since it is larger than the sum of its proper divisors (193682833).

2130511031 is a wasteful number, since it uses less digits than its factorization.

2130511031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193682832.

The product of its (nonzero) digits is 90, while the sum is 17.

The square root of 2130511031 is about 46157.4591046778. The cubic root of 2130511031 is about 1286.7512408351.

Adding to 2130511031 its reverse (1301150312), we get a palindrome (3431661343).

The spelling of 2130511031 in words is "two billion, one hundred thirty million, five hundred eleven thousand, thirty-one".