122153023553 has 16 divisors (see below), whose sum is σ = 136879701504. Its totient is φ = 108030879360.

The previous prime is 122153023549. The next prime is 122153023631. The reversal of 122153023553 is 355320351221.

It is a cyclic number.

It is not a de Polignac number, because 122153023553 - 2² = 122153023549 is a prime.

It is a super-2 number, since 2×122153023553² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (122153022553) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3354701 + ... + 3390917.

It is an arithmetic number, because the mean of its divisors is an integer number (8554981344).

Almost surely, 2^122153023553 is an apocalyptic number.

It is an amenable number.

122153023553 is a deficient number, since it is larger than the sum of its proper divisors (14726677951).

122153023553 is a wasteful number, since it uses less digits than its factorization.

122153023553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44552.

The product of its (nonzero) digits is 27000, while the sum is 32.

Adding to 122153023553 its reverse (355320351221), we get a palindrome (477473374774).

The spelling of 122153023553 in words is "one hundred twenty-two billion, one hundred fifty-three million, twenty-three thousand, five hundred fifty-three".