2130031121 has 8 divisors (see below), whose sum is σ = 2205298920. Its totient is φ = 2054884608.

The previous prime is 2130031093. The next prime is 2130031153. The reversal of 2130031121 is 1211300312.

It can be written as a sum of positive squares in 4 ways, for example, as 1060414096 + 1069617025 = 32564^2 + 32705^2 .

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

It is a de Polignac number, because none of the positive numbers 2^k-2130031121 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2130031096 and 2130031105.

It is not an unprimeable number, because it can be changed into a prime (2130031171) 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, 6185 + ... + 65561.

It is an arithmetic number, because the mean of its divisors is an integer number (275662365).

Almost surely, 2^2130031121 is an apocalyptic number.

It is an amenable number.

2130031121 is a deficient number, since it is larger than the sum of its proper divisors (75267799).

2130031121 is a wasteful number, since it uses less digits than its factorization.

2130031121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60643.

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 2130031121 is about 46152.2601938410. The cubic root of 2130031121 is about 1286.6546175130.

Adding to 2130031121 its reverse (1211300312), we get a palindrome (3341331433).

The spelling of 2130031121 in words is "two billion, one hundred thirty million, thirty-one thousand, one hundred twenty-one".