1021113151 has 2 divisors, whose sum is σ = 1021113152. Its totient is φ = 1021113150.

The previous prime is 1021113101. The next prime is 1021113169. The reversal of 1021113151 is 1513111201.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1021113151 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1021113101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 510556575 + 510556576.

It is an arithmetic number, because the mean of its divisors is an integer number (510556576).

Almost surely, 2^1021113151 is an apocalyptic number.

1021113151 is a deficient number, since it is larger than the sum of its proper divisors (1).

1021113151 is an equidigital number, since it uses as much as digits as its factorization.

1021113151 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 30, while the sum is 16.

The square root of 1021113151 is about 31954.8611481884. The cubic root of 1021113151 is about 1006.9887604440.

Adding to 1021113151 its reverse (1513111201), we get a palindrome (2534224352).

The spelling of 1021113151 in words is "one billion, twenty-one million, one hundred thirteen thousand, one hundred fifty-one".