2140121031 has 16 divisors (see below), whose sum is σ = 3004713600. Its totient is φ = 1351189728.

The previous prime is 2140121029. The next prime is 2140121047. The reversal of 2140121031 is 1301210412.

It is not a de Polignac number, because 2140121031 - 2¹ = 2140121029 is a prime.

It is a super-2 number, since 2×2140121031² = 9160236054657005922, 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 2140121031.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2140121021) 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, 246360 + ... + 254898.

It is an arithmetic number, because the mean of its divisors is an integer number (187794600).

Almost surely, 2^2140121031 is an apocalyptic number.

2140121031 is a deficient number, since it is larger than the sum of its proper divisors (864592569).

2140121031 is a wasteful number, since it uses less digits than its factorization.

2140121031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12958.

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 2140121031 is about 46261.4421629936. The cubic root of 2140121031 is about 1288.6830361116.

Adding to 2140121031 its reverse (1301210412), we get a palindrome (3441331443).

The spelling of 2140121031 in words is "two billion, one hundred forty million, one hundred twenty-one thousand, thirty-one".