1023121101 has 16 divisors (see below), whose sum is σ = 1442416640. Its totient is φ = 643276080.

The previous prime is 1023121039. The next prime is 1023121103. The reversal of 1023121101 is 1011213201.

It is not a de Polignac number, because 1023121101 - 2⁹ = 1023120589 is a prime.

It is a super-2 number, since 2×1023121101² = 2093553574622904402, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1023121103) 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, 27535 + ... + 52956.

It is an arithmetic number, because the mean of its divisors is an integer number (90151040).

Almost surely, 2^1023121101 is an apocalyptic number.

It is an amenable number.

1023121101 is a deficient number, since it is larger than the sum of its proper divisors (419295539).

1023121101 is a wasteful number, since it uses less digits than its factorization.

1023121101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80736.

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

The square root of 1023121101 is about 31986.2642551455. The cubic root of 1023121101 is about 1007.6483867094.

Adding to 1023121101 its reverse (1011213201), we get a palindrome (2034334302).

The spelling of 1023121101 in words is "one billion, twenty-three million, one hundred twenty-one thousand, one hundred one".