1101020002 has 4 divisors (see below), whose sum is σ = 1651530006. Its totient is φ = 550510000.

The previous prime is 1101019991. The next prime is 1101020021. The reversal of 1101020002 is 2000201011.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2000201011 = 17 ⋅117658883.

It can be written as a sum of positive squares in only one way, i.e., 1019461041 + 81558961 = 31929^2 + 9031^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 275254999 + ... + 275255002.

Almost surely, 2^1101020002 is an apocalyptic number.

1101020002 is a deficient number, since it is larger than the sum of its proper divisors (550510004).

1101020002 is an equidigital number, since it uses as much as digits as its factorization.

1101020002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 550510003.

The product of its (nonzero) digits is 4, while the sum is 7.

The square root of 1101020002 is about 33181.6214492300. The cubic root of 1101020002 is about 1032.5990859106.

Adding to 1101020002 its reverse (2000201011), we get a palindrome (3101221013).

The spelling of 1101020002 in words is "one billion, one hundred one million, twenty thousand, two".