2020153123994 has 4 divisors (see below), whose sum is σ = 3030229685994. Its totient is φ = 1010076561996.

The previous prime is 2020153123993. The next prime is 2020153124023. The reversal of 2020153123994 is 4993213510202.

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., 1538604564025 + 481548559969 = 1240405^2 + 693937^2 .

It is not an unprimeable number, because it can be changed into a prime (2020153123993) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 505038280997 + ... + 505038281000.

Almost surely, 2^{2020153123994} is an apocalyptic number.

2020153123994 is a deficient number, since it is larger than the sum of its proper divisors (1010076562000).

2020153123994 is a wasteful number, since it uses less digits than its factorization.

2020153123994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1010076561999.

The product of its (nonzero) digits is 116640, while the sum is 41.

The spelling of 2020153123994 in words is "two trillion, twenty billion, one hundred fifty-three million, one hundred twenty-three thousand, nine hundred ninety-four".