122736511052653 has 4 divisors (see below), whose sum is σ = 122754664662588. Its totient is φ = 122718357442720.

The previous prime is 122736511052633. The next prime is 122736511052711. The reversal of 122736511052653 is 356250115637221.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 78522230070729 + 44214280981924 = 8861277^2 + 6649382^2 .

It is a cyclic number.

It is not a de Polignac number, because 122736511052653 - 2⁵ = 122736511052621 is a prime.

It is a super-2 number, since 2×122736511052653² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 122736511052597 and 122736511052606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122736511052633) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9076794826 + ... + 9076808347.

It is an arithmetic number, because the mean of its divisors is an integer number (30688666165647).

Almost surely, 2^{122736511052653} is an apocalyptic number.

It is an amenable number.

122736511052653 is a deficient number, since it is larger than the sum of its proper divisors (18153609935).

122736511052653 is an equidigital number, since it uses as much as digits as its factorization.

122736511052653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18153609934.

The product of its (nonzero) digits is 2268000, while the sum is 49.

Adding to 122736511052653 its reverse (356250115637221), we get a palindrome (478986626689874).

The spelling of 122736511052653 in words is "one hundred twenty-two trillion, seven hundred thirty-six billion, five hundred eleven million, fifty-two thousand, six hundred fifty-three".