2102314031042 has 4 divisors (see below), whose sum is σ = 3153471046566. Its totient is φ = 1051157015520.

The previous prime is 2102314030939. The next prime is 2102314031071. The reversal of 2102314031042 is 2401304132012.

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

It can be written as a sum of positive squares in only one way, i.e., 2101980932041 + 333099001 = 1449821^2 + 18251^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2102314030999 and 2102314031017.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 525578507759 + ... + 525578507762.

Almost surely, 2^{2102314031042} is an apocalyptic number.

2102314031042 is a deficient number, since it is larger than the sum of its proper divisors (1051157015524).

2102314031042 is a wasteful number, since it uses less digits than its factorization.

2102314031042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1051157015523.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 2102314031042 its reverse (2401304132012), we get a palindrome (4503618163054).

The spelling of 2102314031042 in words is "two trillion, one hundred two billion, three hundred fourteen million, thirty-one thousand, forty-two".