1121020499 has 2 divisors, whose sum is σ = 1121020500. Its totient is φ = 1121020498.

The previous prime is 1121020469. The next prime is 1121020519. The reversal of 1121020499 is 9940201211.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1121020499 - 2¹⁶ = 1120954963 is a prime.

It is not a weakly prime, because it can be changed into another prime (1121020469) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 560510249 + 560510250.

It is an arithmetic number, because the mean of its divisors is an integer number (560510250).

Almost surely, 2^1121020499 is an apocalyptic number.

1121020499 is a deficient number, since it is larger than the sum of its proper divisors (1).

1121020499 is an equidigital number, since it uses as much as digits as its factorization.

1121020499 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296, while the sum is 29.

The square root of 1121020499 is about 33481.6442099249. The cubic root of 1121020499 is about 1038.8141374214.

The spelling of 1121020499 in words is "one billion, one hundred twenty-one million, twenty thousand, four hundred ninety-nine".