20121002038 has 4 divisors (see below), whose sum is σ = 30181503060. Its totient is φ = 10060501018.

The previous prime is 20121002009. The next prime is 20121002039. The reversal of 20121002038 is 83020012102.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20121002039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5030250508 + ... + 5030250511.

It is an arithmetic number, because the mean of its divisors is an integer number (7545375765).

Almost surely, 2^20121002038 is an apocalyptic number.

20121002038 is a deficient number, since it is larger than the sum of its proper divisors (10060501022).

20121002038 is a wasteful number, since it uses less digits than its factorization.

20121002038 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10060501021.

The product of its (nonzero) digits is 192, while the sum is 19.

The spelling of 20121002038 in words is "twenty billion, one hundred twenty-one million, two thousand, thirty-eight".