101322143261 has 8 divisors (see below), whose sum is σ = 105049467000. Its totient is φ = 97610383360.

The previous prime is 101322143243. The next prime is 101322143269. The reversal of 101322143261 is 162341223101.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 10124183161 + 91197960100 = 100619^2 + 301990^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 101322143261 - 2¹⁰ = 101322142237 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 101322143261.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101322143269) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3877700 + ... + 3903741.

It is an arithmetic number, because the mean of its divisors is an integer number (13131183375).

Almost surely, 2^101322143261 is an apocalyptic number.

It is an amenable number.

101322143261 is a deficient number, since it is larger than the sum of its proper divisors (3727323739).

101322143261 is an equidigital number, since it uses as much as digits as its factorization.

101322143261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7781919.

The product of its (nonzero) digits is 1728, while the sum is 26.

Adding to 101322143261 its reverse (162341223101), we get a palindrome (263663366362).

The spelling of 101322143261 in words is "one hundred one billion, three hundred twenty-two million, one hundred forty-three thousand, two hundred sixty-one".