4021023100 has 36 divisors (see below), whose sum is σ = 8961455944. Its totient is φ = 1564937280.

The previous prime is 4021023079. The next prime is 4021023109. The reversal of 4021023100 is 13201204.

It is a super-2 number, since 2×4021023100² = 32337253541467220000, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4021023109) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 539682 + ... + 547081.

Almost surely, 2^4021023100 is an apocalyptic number.

It is an amenable number.

4021023100 is an abundant number, since it is smaller than the sum of its proper divisors (4940432844).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4021023100 is a wasteful number, since it uses less digits than its factorization.

4021023100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1086814 (or 1086807 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 4021023100 is about 63411.5375937219. The cubic root of 4021023100 is about 1590.1772016158.

Adding to 4021023100 its reverse (13201204), we get a palindrome (4034224304).

The spelling of 4021023100 in words is "four billion, twenty-one million, twenty-three thousand, one hundred".