101030201257 has 2 divisors, whose sum is σ = 101030201258. Its totient is φ = 101030201256.

The previous prime is 101030201231. The next prime is 101030201309. The reversal of 101030201257 is 752102030101.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 54067410576 + 46962790681 = 232524^2 + 216709^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-101030201257 is a prime.

It is not a weakly prime, because it can be changed into another prime (101030231257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50515100628 + 50515100629.

It is an arithmetic number, because the mean of its divisors is an integer number (50515100629).

Almost surely, 2^101030201257 is an apocalyptic number.

It is an amenable number.

101030201257 is a deficient number, since it is larger than the sum of its proper divisors (1).

101030201257 is an equidigital number, since it uses as much as digits as its factorization.

101030201257 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 420, while the sum is 22.

Adding to 101030201257 its reverse (752102030101), we get a palindrome (853132231358).

The spelling of 101030201257 in words is "one hundred one billion, thirty million, two hundred one thousand, two hundred fifty-seven".