101045123 has 4 divisors (see below), whose sum is σ = 101714448. Its totient is φ = 100375800.

The previous prime is 101045107. The next prime is 101045201. The reversal of 101045123 is 321540101.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 101045123 - 2⁴ = 101045107 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (101045323) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 334436 + ... + 334737.

It is an arithmetic number, because the mean of its divisors is an integer number (25428612).

Almost surely, 2^101045123 is an apocalyptic number.

101045123 is a deficient number, since it is larger than the sum of its proper divisors (669325).

101045123 is an equidigital number, since it uses as much as digits as its factorization.

101045123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 669324.

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 101045123 is about 10052.1203235934. The cubic root of 101045123 is about 465.7702930094.

Adding to 101045123 its reverse (321540101), we get a palindrome (422585224).

The spelling of 101045123 in words is "one hundred one million, forty-five thousand, one hundred twenty-three".