20020024042402 has 4 divisors (see below), whose sum is σ = 30030036063606. Its totient is φ = 10010012021200.

The previous prime is 20020024042391. The next prime is 20020024042427. The reversal of 20020024042402 is 20424042002002.

It is a happy number.

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., 20012819597761 + 7204444641 = 4473569^2 + 84879^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5005006010599 + ... + 5005006010602.

Almost surely, 2^{20020024042402} is an apocalyptic number.

20020024042402 is a deficient number, since it is larger than the sum of its proper divisors (10010012021204).

20020024042402 is a wasteful number, since it uses less digits than its factorization.

20020024042402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10010012021203.

The product of its (nonzero) digits is 2048, while the sum is 22.

Adding to 20020024042402 its reverse (20424042002002), we get a palindrome (40444066044404).

The spelling of 20020024042402 in words is "twenty trillion, twenty billion, twenty-four million, forty-two thousand, four hundred two".