101023121010 has 128 divisors (see below), whose sum is σ = 297411346944. Its totient is φ = 21434941440.

The previous prime is 101023121009. The next prime is 101023121039. The reversal of 101023121010 is 10121320101.

It is a super-2 number, since 2×101023121010² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 66790 + ... + 454430.

It is an arithmetic number, because the mean of its divisors is an integer number (2323526148).

Almost surely, 2^101023121010 is an apocalyptic number.

101023121010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 101023121010, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (148705673472).

101023121010 is an abundant number, since it is smaller than the sum of its proper divisors (196388225934).

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

101023121010 is a wasteful number, since it uses less digits than its factorization.

101023121010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 387748.

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

Adding to 101023121010 its reverse (10121320101), we get a palindrome (111144441111).

The spelling of 101023121010 in words is "one hundred one billion, twenty-three million, one hundred twenty-one thousand, ten".