1102120157 has 2 divisors, whose sum is σ = 1102120158. Its totient is φ = 1102120156.

The previous prime is 1102120093. The next prime is 1102120163. The reversal of 1102120157 is 7510212011.

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., 660027481 + 442092676 = 25691^2 + 21026^2 .

It is a cyclic number.

It is not a de Polignac number, because 1102120157 - 2⁶ = 1102120093 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1102123157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 551060078 + 551060079.

It is an arithmetic number, because the mean of its divisors is an integer number (551060079).

Almost surely, 2^1102120157 is an apocalyptic number.

It is an amenable number.

1102120157 is a deficient number, since it is larger than the sum of its proper divisors (1).

1102120157 is an equidigital number, since it uses as much as digits as its factorization.

1102120157 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 140, while the sum is 20.

The square root of 1102120157 is about 33198.1950864802. The cubic root of 1102120157 is about 1032.9429007004.

Adding to 1102120157 its reverse (7510212011), we get a palindrome (8612332168).

The spelling of 1102120157 in words is "one billion, one hundred two million, one hundred twenty thousand, one hundred fifty-seven".