123134401534 has 32 divisors (see below), whose sum is σ = 191593797120. Its totient is φ = 59281683552.

The previous prime is 123134401529. The next prime is 123134401543. The reversal of 123134401534 is 435104431321.

It is a super-2 number, since 2×123134401534² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 123134401496 and 123134401505.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45892957 + ... + 45895639.

It is an arithmetic number, because the mean of its divisors is an integer number (5987306160).

Almost surely, 2^123134401534 is an apocalyptic number.

123134401534 is a deficient number, since it is larger than the sum of its proper divisors (68459395586).

123134401534 is a wasteful number, since it uses less digits than its factorization.

123134401534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4584.

The product of its (nonzero) digits is 17280, while the sum is 31.

Adding to 123134401534 its reverse (435104431321), we get a palindrome (558238832855).

The spelling of 123134401534 in words is "one hundred twenty-three billion, one hundred thirty-four million, four hundred one thousand, five hundred thirty-four".