1102020139 has 8 divisors (see below), whose sum is σ = 1227783168. Its totient is φ = 980520360.

The previous prime is 1102020131. The next prime is 1102020151. The reversal of 1102020139 is 9310202011.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1102020139 - 2³ = 1102020131 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1102020131) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1065267 + ... + 1066300.

It is an arithmetic number, because the mean of its divisors is an integer number (153472896).

Almost surely, 2^1102020139 is an apocalyptic number.

1102020139 is a deficient number, since it is larger than the sum of its proper divisors (125763029).

1102020139 is a wasteful number, since it uses less digits than its factorization.

1102020139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2131625.

The product of its (nonzero) digits is 108, while the sum is 19.

The square root of 1102020139 is about 33196.6886752278. The cubic root of 1102020139 is about 1032.9116530463.

The spelling of 1102020139 in words is "one billion, one hundred two million, twenty thousand, one hundred thirty-nine".