102101244145 has 32 divisors (see below), whose sum is σ = 128244549888. Its totient is φ = 77964726528.

The previous prime is 102101244143. The next prime is 102101244149. The reversal of 102101244145 is 541442101201.

It is not a de Polignac number, because 102101244145 - 2¹ = 102101244143 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102101244143) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2013847 + ... + 2063923.

It is an arithmetic number, because the mean of its divisors is an integer number (4007642184).

Almost surely, 2^102101244145 is an apocalyptic number.

It is an amenable number.

102101244145 is a deficient number, since it is larger than the sum of its proper divisors (26143305743).

102101244145 is a wasteful number, since it uses less digits than its factorization.

102101244145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50329.

The product of its (nonzero) digits is 1280, while the sum is 25.

Adding to 102101244145 its reverse (541442101201), we get a palindrome (643543345346).

The spelling of 102101244145 in words is "one hundred two billion, one hundred one million, two hundred forty-four thousand, one hundred forty-five".