2021010403157 has 2 divisors, whose sum is σ = 2021010403158. Its totient is φ = 2021010403156.

The previous prime is 2021010403081. The next prime is 2021010403169. The reversal of 2021010403157 is 7513040101202.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1765393199761 + 255617203396 = 1328681^2 + 505586^2 .

It is a cyclic number.

It is not a de Polignac number, because 2021010403157 - 2¹² = 2021010399061 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2021010403177) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1010505201578 + 1010505201579.

It is an arithmetic number, because the mean of its divisors is an integer number (1010505201579).

Almost surely, 2^{2021010403157} is an apocalyptic number.

It is an amenable number.

2021010403157 is a deficient number, since it is larger than the sum of its proper divisors (1).

2021010403157 is an equidigital number, since it uses as much as digits as its factorization.

2021010403157 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1680, while the sum is 26.

Adding to 2021010403157 its reverse (7513040101202), we get a palindrome (9534050504359).

The spelling of 2021010403157 in words is "two trillion, twenty-one billion, ten million, four hundred three thousand, one hundred fifty-seven".