1010131121 has 2 divisors, whose sum is σ = 1010131122. Its totient is φ = 1010131120.

The previous prime is 1010131099. The next prime is 1010131127. The reversal of 1010131121 is 1211310101.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 930921121 + 79210000 = 30511^2 + 8900^2 .

It is a cyclic number.

It is not a de Polignac number, because 1010131121 - 2¹⁴ = 1010114737 is a prime.

It is a super-2 number, since 2×1010131121² = 2040729763225433282, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1010131127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 505065560 + 505065561.

It is an arithmetic number, because the mean of its divisors is an integer number (505065561).

Almost surely, 2^1010131121 is an apocalyptic number.

It is an amenable number.

1010131121 is a deficient number, since it is larger than the sum of its proper divisors (1).

1010131121 is an equidigital number, since it uses as much as digits as its factorization.

1010131121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6, while the sum is 11.

The square root of 1010131121 is about 31782.5600133155. The cubic root of 1010131121 is about 1003.3656996901.

Adding to 1010131121 its reverse (1211310101), we get a palindrome (2221441222).

The spelling of 1010131121 in words is "one billion, ten million, one hundred thirty-one thousand, one hundred twenty-one".