1102023021 has 16 divisors (see below), whose sum is σ = 1625522688. Its totient is φ = 658484400.

The previous prime is 1102022993. The next prime is 1102023031. The reversal of 1102023021 is 1203202011.

It is not a de Polignac number, because 1102023021 - 2⁷ = 1102022893 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1102022988 and 1102023006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1102023031) 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, 232831 + ... + 237516.

It is an arithmetic number, because the mean of its divisors is an integer number (101595168).

Almost surely, 2^1102023021 is an apocalyptic number.

1102023021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1102023021 is a deficient number, since it is larger than the sum of its proper divisors (523499667).

1102023021 is a wasteful number, since it uses less digits than its factorization.

1102023021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 470432.

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 1102023021 is about 33196.7320831434. The cubic root of 1102023021 is about 1032.9125534680.

Adding to 1102023021 its reverse (1203202011), we get a palindrome (2305225032).

The spelling of 1102023021 in words is "one billion, one hundred two million, twenty-three thousand, twenty-one".