1021100153 has 2 divisors, whose sum is σ = 1021100154. Its totient is φ = 1021100152.

The previous prime is 1021100141. The next prime is 1021100161. The reversal of 1021100153 is 3510011201.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 986148409 + 34951744 = 31403^2 + 5912^2 .

It is a cyclic number.

It is not a de Polignac number, because 1021100153 - 2⁶ = 1021100089 is a prime.

It is not a weakly prime, because it can be changed into another prime (1021100183) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 510550076 + 510550077.

It is an arithmetic number, because the mean of its divisors is an integer number (510550077).

Almost surely, 2^1021100153 is an apocalyptic number.

It is an amenable number.

1021100153 is a deficient number, since it is larger than the sum of its proper divisors (1).

1021100153 is an equidigital number, since it uses as much as digits as its factorization.

1021100153 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 30, while the sum is 14.

The square root of 1021100153 is about 31954.6577669047. The cubic root of 1021100153 is about 1006.9844876901.

Adding to 1021100153 its reverse (3510011201), we get a palindrome (4531111354).

The spelling of 1021100153 in words is "one billion, twenty-one million, one hundred thousand, one hundred fifty-three".