1401123444345 has 24 divisors (see below), whose sum is σ = 2487848460552. Its totient is φ = 729039840000.

The previous prime is 1401123444337. The next prime is 1401123444377. The reversal of 1401123444345 is 5434443211041.

It is a happy number.

1401123444345 is a `hidden beast` number, since 1 + 40 + 1 + 1 + 234 + 44 + 345 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 136092374649 + 1265031069696 = 368907^2 + 1124736^2 .

It is not a de Polignac number, because 1401123444345 - 2³ = 1401123444337 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 379706406 + ... + 379710095.

It is an arithmetic number, because the mean of its divisors is an integer number (103660352523).

Almost surely, 2^{1401123444345} is an apocalyptic number.

1401123444345 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1401123444345 is a deficient number, since it is larger than the sum of its proper divisors (1086725016207).

1401123444345 is a wasteful number, since it uses less digits than its factorization.

1401123444345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 759416553 (or 759416550 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 36.

Adding to 1401123444345 its reverse (5434443211041), we get a palindrome (6835566655386).

The spelling of 1401123444345 in words is "one trillion, four hundred one billion, one hundred twenty-three million, four hundred forty-four thousand, three hundred forty-five".