20238528945130 has 32 divisors (see below), whose sum is σ = 36566176660560. Its totient is φ = 8065036738560.

The previous prime is 20238528945073. The next prime is 20238528945181. The reversal of 20238528945130 is 3154982583202.

It can be written as a sum of positive squares in 8 ways, for example, as 6462918119529 + 13775610825601 = 2542227^2 + 3711551^2 .

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, 3378090 + ... + 7203370.

Almost surely, 2^{20238528945130} is an apocalyptic number.

20238528945130 is a deficient number, since it is larger than the sum of its proper divisors (16327647715430).

20238528945130 is a wasteful number, since it uses less digits than its factorization.

20238528945130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3827274.

The product of its (nonzero) digits is 4147200, while the sum is 52.

The spelling of 20238528945130 in words is "twenty trillion, two hundred thirty-eight billion, five hundred twenty-eight million, nine hundred forty-five thousand, one hundred thirty".