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10121201357 is a prime number
BaseRepresentation
bin10010110110100010…
…10100011011001101
3222010100211022010112
421123101110123031
5131212011420412
64352152245405
7505545535451
oct113321243315
928110738115
1010121201357
114324177423
121b656a0865
13c53b45157
146c02b2661
153e384e722
hex25b4546cd

10121201357 has 2 divisors, whose sum is σ = 10121201358. Its totient is φ = 10121201356.

The previous prime is 10121201327. The next prime is 10121201399. The reversal of 10121201357 is 75310212101.

10121201357 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10109498116 + 11703241 = 100546^2 + 3421^2 .

It is a cyclic number.

It is not a de Polignac number, because 10121201357 - 210 = 10121200333 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10121201317) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5060600678 + 5060600679.

It is an arithmetic number, because the mean of its divisors is an integer number (5060600679).

Almost surely, 210121201357 is an apocalyptic number.

It is an amenable number.

10121201357 is a deficient number, since it is larger than the sum of its proper divisors (1).

10121201357 is an equidigital number, since it uses as much as digits as its factorization.

10121201357 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 23.

Adding to 10121201357 its reverse (75310212101), we get a palindrome (85431413458).

The spelling of 10121201357 in words is "ten billion, one hundred twenty-one million, two hundred one thousand, three hundred fifty-seven".