123402101043 has 48 divisors (see below), whose sum is σ = 188961548544. Its totient is φ = 71446826880.

The previous prime is 123402101021. The next prime is 123402101071. The reversal of 123402101043 is 340101204321.

It is not a de Polignac number, because 123402101043 - 2¹² = 123402096947 is a prime.

It is a super-3 number, since 3×123402101043³ (a number of 34 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (123402106043) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 624580 + ... + 798062.

It is an arithmetic number, because the mean of its divisors is an integer number (3936698928).

Almost surely, 2^123402101043 is an apocalyptic number.

123402101043 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

123402101043 is a deficient number, since it is larger than the sum of its proper divisors (65559447501).

123402101043 is a wasteful number, since it uses less digits than its factorization.

123402101043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173596 (or 173583 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 123402101043 its reverse (340101204321), we get a palindrome (463503305364).

The spelling of 123402101043 in words is "one hundred twenty-three billion, four hundred two million, one hundred one thousand, forty-three".