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101223230077 is a prime number
BaseRepresentation
bin101111001000101011…
…1111110101001111101
3100200021102100212110101
41132101113332221331
53124301121330302
6114300141041101
710212256154644
oct1362127765175
9320242325411
10101223230077
1139a23968a52
121774b556191
139712078618
144c836ba35b
152976813287
hex17915fea7d

101223230077 has 2 divisors, whose sum is σ = 101223230078. Its totient is φ = 101223230076.

The previous prime is 101223230071. The next prime is 101223230107. The reversal of 101223230077 is 770032322101.

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., 90522155161 + 10701074916 = 300869^2 + 103446^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-101223230077 is a prime.

It is a super-2 number, since 2×1012232300772 (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (101223230071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50611615038 + 50611615039.

It is an arithmetic number, because the mean of its divisors is an integer number (50611615039).

Almost surely, 2101223230077 is an apocalyptic number.

It is an amenable number.

101223230077 is a deficient number, since it is larger than the sum of its proper divisors (1).

101223230077 is an equidigital number, since it uses as much as digits as its factorization.

101223230077 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3528, while the sum is 28.

Adding to 101223230077 its reverse (770032322101), we get a palindrome (871255552178).

The spelling of 101223230077 in words is "one hundred one billion, two hundred twenty-three million, two hundred thirty thousand, seventy-seven".