2120142447734 has 8 divisors (see below), whose sum is σ = 3180761340768. Its totient is φ = 1059888667480.

The previous prime is 2120142447733. The next prime is 2120142447749. The reversal of 2120142447734 is 4377442410212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 2120142447691 and 2120142447700.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2120142447733) 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, 91263677 + ... + 91286904.

It is an arithmetic number, because the mean of its divisors is an integer number (397595167596).

Almost surely, 2^{2120142447734} is an apocalyptic number.

2120142447734 is a deficient number, since it is larger than the sum of its proper divisors (1060618893034).

2120142447734 is a wasteful number, since it uses less digits than its factorization.

2120142447734 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182556390.

The product of its (nonzero) digits is 301056, while the sum is 41.

Adding to 2120142447734 its reverse (4377442410212), we get a palindrome (6497584857946).

The spelling of 2120142447734 in words is "two trillion, one hundred twenty billion, one hundred forty-two million, four hundred forty-seven thousand, seven hundred thirty-four".