2101148942 has 16 divisors (see below), whose sum is σ = 3190897152. Its totient is φ = 1037576760.

The previous prime is 2101148941. The next prime is 2101148957. The reversal of 2101148942 is 2498411012.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 2101148899 and 2101148908.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2101148941) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56003 + ... + 85665.

It is an arithmetic number, because the mean of its divisors is an integer number (199431072).

Almost surely, 2^2101148942 is an apocalyptic number.

2101148942 is a deficient number, since it is larger than the sum of its proper divisors (1089748210).

2101148942 is a wasteful number, since it uses less digits than its factorization.

2101148942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30103.

The product of its (nonzero) digits is 4608, while the sum is 32.

The square root of 2101148942 is about 45838.2912203324. The cubic root of 2101148942 is about 1280.8126638673.

Adding to 2101148942 its reverse (2498411012), we get a palindrome (4599559954).

The spelling of 2101148942 in words is "two billion, one hundred one million, one hundred forty-eight thousand, nine hundred forty-two".