101051621634 has 16 divisors (see below), whose sum is σ = 202854559680. Its totient is φ = 33558654480.

The previous prime is 101051621617. The next prime is 101051621639. The reversal of 101051621634 is 436126150101.

It is a happy number.

It is a super-2 number, since 2×101051621634² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (101051621639) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31303102 + ... + 31306329.

It is an arithmetic number, because the mean of its divisors is an integer number (12678409980).

Almost surely, 2^101051621634 is an apocalyptic number.

101051621634 is an abundant number, since it is smaller than the sum of its proper divisors (101802938046).

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

101051621634 is a wasteful number, since it uses less digits than its factorization.

101051621634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62609705.

The product of its (nonzero) digits is 4320, while the sum is 30.

Adding to 101051621634 its reverse (436126150101), we get a palindrome (537177771735).

The spelling of 101051621634 in words is "one hundred one billion, fifty-one million, six hundred twenty-one thousand, six hundred thirty-four".