2030120421 has 24 divisors (see below), whose sum is σ = 3179352384. Its totient is φ = 1148797440.

The previous prime is 2030120419. The next prime is 2030120423. The reversal of 2030120421 is 1240210302.

It is an interprime number because it is at equal distance from previous prime (2030120419) and next prime (2030120423).

It is not a de Polignac number, because 2030120421 - 2¹ = 2030120419 is a prime.

It is a super-2 number, since 2×2030120421² = 8242777847522434482, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2030120421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2030120423) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 51900 + ... + 82181.

It is an arithmetic number, because the mean of its divisors is an integer number (132473016).

Almost surely, 2^2030120421 is an apocalyptic number.

2030120421 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2030120421 is a deficient number, since it is larger than the sum of its proper divisors (1149231963).

2030120421 is a wasteful number, since it uses less digits than its factorization.

2030120421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134201 (or 134194 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 2030120421 is about 45056.8576467556. The cubic root of 2030120421 is about 1266.2144535868.

Adding to 2030120421 its reverse (1240210302), we get a palindrome (3270330723).

It can be divided in two parts, 20 and 30120421, that added together give a triangular number (30120441 = T₇₇₆₁).

The spelling of 2030120421 in words is "two billion, thirty million, one hundred twenty thousand, four hundred twenty-one".