1101012123 has 16 divisors (see below), whose sum is σ = 1576267776. Its totient is φ = 681098880.

The previous prime is 1101012109. The next prime is 1101012127. The reversal of 1101012123 is 3212101011.

It is not a de Polignac number, because 1101012123 - 2⁵ = 1101012091 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1101012099 and 1101012108.

It is not an unprimeable number, because it can be changed into a prime (1101012127) 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, 148411 + ... + 155652.

It is an arithmetic number, because the mean of its divisors is an integer number (98516736).

Almost surely, 2^1101012123 is an apocalyptic number.

1101012123 is a deficient number, since it is larger than the sum of its proper divisors (475255653).

1101012123 is a wasteful number, since it uses less digits than its factorization.

1101012123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 304154.

The product of its (nonzero) digits is 12, while the sum is 12.

The square root of 1101012123 is about 33181.5027236561. The cubic root of 1101012123 is about 1032.5966227801.

Adding to 1101012123 its reverse (3212101011), we get a palindrome (4313113134).

The spelling of 1101012123 in words is "one billion, one hundred one million, twelve thousand, one hundred twenty-three".