102101531140 has 48 divisors (see below), whose sum is σ = 259458014592. Its totient is φ = 32947047936.

The previous prime is 102101531111. The next prime is 102101531177. The reversal of 102101531140 is 41135101201.

It is a super-2 number, since 2×102101531140² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21447522 + ... + 21452281.

It is an arithmetic number, because the mean of its divisors is an integer number (5405375304).

Almost surely, 2^102101531140 is an apocalyptic number.

102101531140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102101531140 is an abundant number, since it is smaller than the sum of its proper divisors (157356483452).

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

102101531140 is a wasteful number, since it uses less digits than its factorization.

102101531140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42899836 (or 42899834 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 19.

Adding to 102101531140 its reverse (41135101201), we get a palindrome (143236632341).

The spelling of 102101531140 in words is "one hundred two billion, one hundred one million, five hundred thirty-one thousand, one hundred forty".