101131400 has 24 divisors (see below), whose sum is σ = 235130970. Its totient is φ = 40452480.

The previous prime is 101131363. The next prime is 101131403. The reversal of 101131400 is 4131101.

It can be written as a sum of positive squares in 3 ways, for example, as 64866916 + 36264484 = 8054^2 + 6022^2 .

It is not an unprimeable number, because it can be changed into a prime (101131403) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 252629 + ... + 253028.

Almost surely, 2^101131400 is an apocalyptic number.

101131400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101131400 is an abundant number, since it is smaller than the sum of its proper divisors (133999570).

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

101131400 is a wasteful number, since it uses less digits than its factorization.

101131400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 505673 (or 505664 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 11.

The square root of 101131400 is about 10056.4108905712. The cubic root of 101131400 is about 465.9028207041.

Adding to 101131400 its reverse (4131101), we get a palindrome (105262501).

The spelling of 101131400 in words is "one hundred one million, one hundred thirty-one thousand, four hundred".