123331341401554 has 64 divisors (see below), whose sum is σ = 218705975389440. Its totient is φ = 51422614629120.

The previous prime is 123331341401537. The next prime is 123331341401591. The reversal of 123331341401554 is 455104143133321.

It is a super-2 number, since 2×123331341401554² (a number of 29 digits) contains 22 as substring.

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 31 ways as a sum of consecutive naturals, for example, 45387267 + ... + 48027769.

It is an arithmetic number, because the mean of its divisors is an integer number (3417280865460).

Almost surely, 2^{123331341401554} is an apocalyptic number.

123331341401554 is a deficient number, since it is larger than the sum of its proper divisors (95374633987886).

123331341401554 is a wasteful number, since it uses less digits than its factorization.

123331341401554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2641555.

The product of its (nonzero) digits is 259200, while the sum is 40.

Adding to 123331341401554 its reverse (455104143133321), we get a palindrome (578435484534875).

The spelling of 123331341401554 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-four".