1012400030 has 32 divisors (see below), whose sum is σ = 1835792640. Its totient is φ = 401978880.

The previous prime is 1012400029. The next prime is 1012400071. The reversal of 1012400030 is 300042101.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1012399984 and 1012400020.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1153952 + ... + 1154828.

It is an arithmetic number, because the mean of its divisors is an integer number (57368520).

Almost surely, 2^1012400030 is an apocalyptic number.

1012400030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1012400030 is a deficient number, since it is larger than the sum of its proper divisors (823392610).

1012400030 is a wasteful number, since it uses less digits than its factorization.

1012400030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1604.

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 1012400030 is about 31818.2342376192. The cubic root of 1012400030 is about 1004.1163755357.

Adding to 1012400030 its reverse (300042101), we get a palindrome (1312442131).

The spelling of 1012400030 in words is "one billion, twelve million, four hundred thousand, thirty".