123401062051 has 16 divisors (see below), whose sum is σ = 134944282368. Its totient is φ = 112337740800.

The previous prime is 123401062049. The next prime is 123401062067. The reversal of 123401062051 is 150260104321.

It is a happy number.

It is not a de Polignac number, because 123401062051 - 2¹ = 123401062049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123401066051) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 980431 + ... + 1099111.

It is an arithmetic number, because the mean of its divisors is an integer number (8434017648).

Almost surely, 2^123401062051 is an apocalyptic number.

123401062051 is a deficient number, since it is larger than the sum of its proper divisors (11543220317).

123401062051 is a wasteful number, since it uses less digits than its factorization.

123401062051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120702.

The product of its (nonzero) digits is 1440, while the sum is 25.

Adding to 123401062051 its reverse (150260104321), we get a palindrome (273661166372).

The spelling of 123401062051 in words is "one hundred twenty-three billion, four hundred one million, sixty-two thousand, fifty-one".