202111021039 has 2 divisors, whose sum is σ = 202111021040. Its totient is φ = 202111021038.

The previous prime is 202111021003. The next prime is 202111021103. The reversal of 202111021039 is 930120111202.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-202111021039 is a prime.

It is a super-4 number, since 4×202111021039⁴ (a number of 46 digits) contains 4444 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (202111061039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101055510519 + 101055510520.

It is an arithmetic number, because the mean of its divisors is an integer number (101055510520).

Almost surely, 2^202111021039 is an apocalyptic number.

202111021039 is a deficient number, since it is larger than the sum of its proper divisors (1).

202111021039 is an equidigital number, since it uses as much as digits as its factorization.

202111021039 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216, while the sum is 22.

The spelling of 202111021039 in words is "two hundred two billion, one hundred eleven million, twenty-one thousand, thirty-nine".