1100321020157 has 2 divisors, whose sum is σ = 1100321020158. Its totient is φ = 1100321020156.

The previous prime is 1100321020129. The next prime is 1100321020159. The reversal of 1100321020157 is 7510201230011.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 948898084996 + 151422935161 = 974114^2 + 389131^2 .

It is a cyclic number.

It is not a de Polignac number, because 1100321020157 - 2⁸ = 1100321019901 is a prime.

Together with 1100321020159, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1100321020159) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 550160510078 + 550160510079.

It is an arithmetic number, because the mean of its divisors is an integer number (550160510079).

Almost surely, 2^{1100321020157} is an apocalyptic number.

It is an amenable number.

1100321020157 is a deficient number, since it is larger than the sum of its proper divisors (1).

1100321020157 is an equidigital number, since it uses as much as digits as its factorization.

1100321020157 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 420, while the sum is 23.

Adding to 1100321020157 its reverse (7510201230011), we get a palindrome (8610522250168).

The spelling of 1100321020157 in words is "one trillion, one hundred billion, three hundred twenty-one million, twenty thousand, one hundred fifty-seven".