2126356431 has 16 divisors (see below), whose sum is σ = 2849193984. Its totient is φ = 1410562944.

The previous prime is 2126356409. The next prime is 2126356439. The reversal of 2126356431 is 1346536212.

It is not a de Polignac number, because 2126356431 - 2⁵ = 2126356399 is a prime.

It is a super-2 number, since 2×2126356431² = 9042783343310115522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2126356392 and 2126356401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2126356439) 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, 591666 + ... + 595248.

It is an arithmetic number, because the mean of its divisors is an integer number (178074624).

Almost surely, 2^2126356431 is an apocalyptic number.

2126356431 is a deficient number, since it is larger than the sum of its proper divisors (722837553).

2126356431 is a wasteful number, since it uses less digits than its factorization.

2126356431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4510.

The product of its digits is 25920, while the sum is 33.

The square root of 2126356431 is about 46112.4324992729. The cubic root of 2126356431 is about 1285.9142874247.

The spelling of 2126356431 in words is "two billion, one hundred twenty-six million, three hundred fifty-six thousand, four hundred thirty-one".