3011121131 has 4 divisors (see below), whose sum is σ = 3011645472. Its totient is φ = 3010596792.

The previous prime is 3011121097. The next prime is 3011121137. The reversal of 3011121131 is 1311211103.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1311211103 = 59 ⋅22223917.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3011121131 is a prime.

It is a super-2 number, since 2×3011121131² = 18133700931109438322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3011121137) 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, 253460 + ... + 265073.

It is an arithmetic number, because the mean of its divisors is an integer number (752911368).

Almost surely, 2^3011121131 is an apocalyptic number.

3011121131 is a deficient number, since it is larger than the sum of its proper divisors (524341).

3011121131 is an equidigital number, since it uses as much as digits as its factorization.

3011121131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 524340.

The product of its (nonzero) digits is 18, while the sum is 14.

The square root of 3011121131 is about 54873.6834101740. The cubic root of 3011121131 is about 1444.0295333608.

Adding to 3011121131 its reverse (1311211103), we get a palindrome (4322332234).

The spelling of 3011121131 in words is "three billion, eleven million, one hundred twenty-one thousand, one hundred thirty-one".