20121202039 has 2 divisors, whose sum is σ = 20121202040. Its totient is φ = 20121202038.

The previous prime is 20121202001. The next prime is 20121202061. The reversal of 20121202039 is 93020212102.

It is an a-pointer prime, because the next prime (20121202061) can be obtained adding 20121202039 to its sum of digits (22).

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20121202039 - 2¹¹ = 20121199991 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20121208039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10060601019 + 10060601020.

It is an arithmetic number, because the mean of its divisors is an integer number (10060601020).

Almost surely, 2^20121202039 is an apocalyptic number.

20121202039 is a deficient number, since it is larger than the sum of its proper divisors (1).

20121202039 is an equidigital number, since it uses as much as digits as its factorization.

20121202039 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 22.

The spelling of 20121202039 in words is "twenty billion, one hundred twenty-one million, two hundred two thousand, thirty-nine".