20020220351 has 2 divisors, whose sum is σ = 20020220352. Its totient is φ = 20020220350.

The previous prime is 20020220309. The next prime is 20020220377. The reversal of 20020220351 is 15302202002.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20020220351 - 2¹⁸ = 20019958207 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20020223351) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10010110175 + 10010110176.

It is an arithmetic number, because the mean of its divisors is an integer number (10010110176).

Almost surely, 2^20020220351 is an apocalyptic number.

20020220351 is a deficient number, since it is larger than the sum of its proper divisors (1).

20020220351 is an equidigital number, since it uses as much as digits as its factorization.

20020220351 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 240, while the sum is 17.

Adding to 20020220351 its reverse (15302202002), we get a palindrome (35322422353).

The spelling of 20020220351 in words is "twenty billion, twenty million, two hundred twenty thousand, three hundred fifty-one".