123445400354 has 16 divisors (see below), whose sum is σ = 188314657056. Its totient is φ = 60677601600.

The previous prime is 123445400333. The next prime is 123445400369. The reversal of 123445400354 is 453004544321.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 872327 + ... + 1003914.

It is an arithmetic number, because the mean of its divisors is an integer number (11769666066).

Almost surely, 2^123445400354 is an apocalyptic number.

123445400354 is a deficient number, since it is larger than the sum of its proper divisors (64869256702).

123445400354 is a wasteful number, since it uses less digits than its factorization.

123445400354 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1876801.

The product of its (nonzero) digits is 115200, while the sum is 35.

Adding to 123445400354 its reverse (453004544321), we get a palindrome (576449944675).

The spelling of 123445400354 in words is "one hundred twenty-three billion, four hundred forty-five million, four hundred thousand, three hundred fifty-four".