20271000351 has 16 divisors (see below), whose sum is σ = 30955302144. Its totient is φ = 11558619264.

The previous prime is 20271000349. The next prime is 20271000353. The reversal of 20271000351 is 15300017202.

It is an interprime number because it is at equal distance from previous prime (20271000349) and next prime (20271000353).

It is not a de Polignac number, because 20271000351 - 2¹ = 20271000349 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20271000353) 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, 1023690 + ... + 1043303.

It is an arithmetic number, because the mean of its divisors is an integer number (1934706384).

Almost surely, 2^20271000351 is an apocalyptic number.

20271000351 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

20271000351 is a deficient number, since it is larger than the sum of its proper divisors (10684301793).

20271000351 is a wasteful number, since it uses less digits than its factorization.

20271000351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2067470.

The product of its (nonzero) digits is 420, while the sum is 21.

Adding to 20271000351 its reverse (15300017202), we get a palindrome (35571017553).

The spelling of 20271000351 in words is "twenty billion, two hundred seventy-one million, three hundred fifty-one", and thus it is an aban number.