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101223252553 is a prime number
BaseRepresentation
bin101111001000101100…
…0000100001001001001
3100200021102102000021211
41132101120010021021
53124301123040203
6114300141333121
710212256310323
oct1362130041111
9320242360254
10101223252553
1139a23983925
121774b5671a1
139712085917
144c836c4613
152976819c6d
hex1791604249

101223252553 has 2 divisors, whose sum is σ = 101223252554. Its totient is φ = 101223252552.

The previous prime is 101223252551. The next prime is 101223252583. The reversal of 101223252553 is 355252322101.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 84958841529 + 16264411024 = 291477^2 + 127532^2 .

It is a cyclic number.

It is not a de Polignac number, because 101223252553 - 21 = 101223252551 is a prime.

It is a super-2 number, since 2×1012232525532 (a number of 23 digits) contains 22 as substring.

Together with 101223252551, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (101223252551) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50611626276 + 50611626277.

It is an arithmetic number, because the mean of its divisors is an integer number (50611626277).

Almost surely, 2101223252553 is an apocalyptic number.

It is an amenable number.

101223252553 is a deficient number, since it is larger than the sum of its proper divisors (1).

101223252553 is an equidigital number, since it uses as much as digits as its factorization.

101223252553 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18000, while the sum is 31.

Adding to 101223252553 its reverse (355252322101), we get a palindrome (456475574654).

The spelling of 101223252553 in words is "one hundred one billion, two hundred twenty-three million, two hundred fifty-two thousand, five hundred fifty-three".