1102020311 has 16 divisors (see below), whose sum is σ = 1328712960. Its totient is φ = 892866240.

The previous prime is 1102020307. The next prime is 1102020313. The reversal of 1102020311 is 1130202011.

It is not a de Polignac number, because 1102020311 - 2² = 1102020307 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1102020292 and 1102020301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1102020313) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 51716 + ... + 69846.

It is an arithmetic number, because the mean of its divisors is an integer number (83044560).

Almost surely, 2^1102020311 is an apocalyptic number.

1102020311 is a deficient number, since it is larger than the sum of its proper divisors (226692649).

1102020311 is a wasteful number, since it uses less digits than its factorization.

1102020311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18614.

The product of its (nonzero) digits is 12, while the sum is 11.

The square root of 1102020311 is about 33196.6912658476. The cubic root of 1102020311 is about 1032.9117067842.

Adding to 1102020311 its reverse (1130202011), we get a palindrome (2232222322).

The spelling of 1102020311 in words is "one billion, one hundred two million, twenty thousand, three hundred eleven".