123902340535 has 16 divisors (see below), whose sum is σ = 150164688960. Its totient is φ = 98134444800.

The previous prime is 123902340511. The next prime is 123902340557. The reversal of 123902340535 is 535043209321.

It is not a de Polignac number, because 123902340535 - 2⁷ = 123902340407 is a prime.

It is a super-2 number, since 2×123902340535² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 123902340494 and 123902340503.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2134881 + ... + 2192149.

It is an arithmetic number, because the mean of its divisors is an integer number (9385293060).

Almost surely, 2^123902340535 is an apocalyptic number.

123902340535 is a deficient number, since it is larger than the sum of its proper divisors (26262348425).

123902340535 is a wasteful number, since it uses less digits than its factorization.

123902340535 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61578.

The product of its (nonzero) digits is 97200, while the sum is 37.

Adding to 123902340535 its reverse (535043209321), we get a palindrome (658945549856).

The spelling of 123902340535 in words is "one hundred twenty-three billion, nine hundred two million, three hundred forty thousand, five hundred thirty-five".