1021401104 has 20 divisors (see below), whose sum is σ = 1982946000. Its totient is φ = 509673120.

The previous prime is 1021401091. The next prime is 1021401137. The reversal of 1021401104 is 4011041201.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55982 + ... + 71949.

It is an arithmetic number, because the mean of its divisors is an integer number (99147300).

Almost surely, 2^1021401104 is an apocalyptic number.

It is an amenable number.

1021401104 is a deficient number, since it is larger than the sum of its proper divisors (961544896).

1021401104 is a wasteful number, since it uses less digits than its factorization.

1021401104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128438 (or 128432 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

The square root of 1021401104 is about 31959.3664517931. The cubic root of 1021401104 is about 1007.0834081925.

Adding to 1021401104 its reverse (4011041201), we get a palindrome (5032442305).

The spelling of 1021401104 in words is "one billion, twenty-one million, four hundred one thousand, one hundred four".