3215100030 has 32 divisors (see below), whose sum is σ = 7725003264. Its totient is φ = 856386336.

The previous prime is 3215100013. The next prime is 3215100037. The reversal of 3215100030 is 300015123.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 3215099982 and 3215100009.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3215100037) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33802 + ... + 87021.

It is an arithmetic number, because the mean of its divisors is an integer number (241406352).

Almost surely, 2^3215100030 is an apocalyptic number.

3215100030 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

3215100030 is an abundant number, since it is smaller than the sum of its proper divisors (4509903234).

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

3215100030 is a wasteful number, since it uses less digits than its factorization.

3215100030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121720.

The product of its (nonzero) digits is 90, while the sum is 15.

The square root of 3215100030 is about 56701.8520861532. The cubic root of 3215100030 is about 1475.9268375762.

Adding to 3215100030 its reverse (300015123), we get a palindrome (3515115153).

The spelling of 3215100030 in words is "three billion, two hundred fifteen million, one hundred thousand, thirty".