101440434140 has 12 divisors (see below), whose sum is σ = 213024911736. Its totient is φ = 40576173648.

The previous prime is 101440434127. The next prime is 101440434181. The reversal of 101440434140 is 41434044101.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2536010834 + ... + 2536010873.

It is an arithmetic number, because the mean of its divisors is an integer number (17752075978).

Almost surely, 2^101440434140 is an apocalyptic number.

101440434140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101440434140 is an abundant number, since it is smaller than the sum of its proper divisors (111584477596).

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

101440434140 is a wasteful number, since it uses less digits than its factorization.

101440434140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5072021716 (or 5072021714 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 26.

Adding to 101440434140 its reverse (41434044101), we get a palindrome (142874478241).

The spelling of 101440434140 in words is "one hundred one billion, four hundred forty million, four hundred thirty-four thousand, one hundred forty".