1210130400 has 72 divisors (see below), whose sum is σ = 3938982264. Its totient is φ = 322700800.

The previous prime is 1210130393. The next prime is 1210130407. The reversal of 1210130400 is 40310121.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1210130393) and next prime (1210130407).

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1210130407) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 249711 + ... + 254510.

It is an arithmetic number, because the mean of its divisors is an integer number (54708087).

Almost surely, 2^1210130400 is an apocalyptic number.

1210130400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1210130400 is an abundant number, since it is smaller than the sum of its proper divisors (2728851864).

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

1210130400 is a wasteful number, since it uses less digits than its factorization.

1210130400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 504244 (or 504231 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 1210130400 is about 34786.9285795685. The cubic root of 1210130400 is about 1065.6405148769.

Adding to 1210130400 its reverse (40310121), we get a palindrome (1250440521).

The spelling of 1210130400 in words is "one billion, two hundred ten million, one hundred thirty thousand, four hundred".