123331341401555 has 16 divisors (see below), whose sum is σ = 169464770529984. Its totient is φ = 84407740085760.

The previous prime is 123331341401537. The next prime is 123331341401591. The reversal of 123331341401555 is 555104143133321.

It is not a de Polignac number, because 123331341401555 - 2¹⁶ = 123331341336019 is a prime.

It is a Duffinian 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, 3381702122 + ... + 3381738591.

It is an arithmetic number, because the mean of its divisors is an integer number (10591548158124).

Almost surely, 2^{123331341401555} is an apocalyptic number.

123331341401555 is a deficient number, since it is larger than the sum of its proper divisors (46133429128429).

123331341401555 is an equidigital number, since it uses as much as digits as its factorization.

123331341401555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6763441246.

The product of its (nonzero) digits is 324000, while the sum is 41.

Adding to 123331341401555 its reverse (555104143133321), we get a palindrome (678435484534876).

The spelling of 123331341401555 in words is "one hundred twenty-three trillion, three hundred thirty-one billion, three hundred forty-one million, four hundred one thousand, five hundred fifty-five".