1120021951 has 2 divisors, whose sum is σ = 1120021952. Its totient is φ = 1120021950.

The previous prime is 1120021943. The next prime is 1120021993. The reversal of 1120021951 is 1591200211.

It is a weak prime.

It is an emirp because it is prime and its reverse (1591200211) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1120021951 - 2³ = 1120021943 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1120021901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 560010975 + 560010976.

It is an arithmetic number, because the mean of its divisors is an integer number (560010976).

Almost surely, 2^1120021951 is an apocalyptic number.

1120021951 is a deficient number, since it is larger than the sum of its proper divisors (1).

1120021951 is an equidigital number, since it uses as much as digits as its factorization.

1120021951 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 180, while the sum is 22.

The square root of 1120021951 is about 33466.7290155462. The cubic root of 1120021951 is about 1038.5056048758.

The spelling of 1120021951 in words is "one billion, one hundred twenty million, twenty-one thousand, nine hundred fifty-one".