123032143455 has 16 divisors (see below), whose sum is σ = 211993847520. Its totient is φ = 60569670528.

The previous prime is 123032143427. The next prime is 123032143463. The reversal of 123032143455 is 554341230321.

It is not a de Polignac number, because 123032143455 - 2¹⁸ = 123031881311 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 315466840 + ... + 315467229.

It is an arithmetic number, because the mean of its divisors is an integer number (13249615470).

Almost surely, 2^123032143455 is an apocalyptic number.

123032143455 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

123032143455 is a deficient number, since it is larger than the sum of its proper divisors (88961704065).

123032143455 is a wasteful number, since it uses less digits than its factorization.

123032143455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 630934090.

The product of its (nonzero) digits is 43200, while the sum is 33.

Adding to 123032143455 its reverse (554341230321), we get a palindrome (677373373776).

The spelling of 123032143455 in words is "one hundred twenty-three billion, thirty-two million, one hundred forty-three thousand, four hundred fifty-five".